Singtel Optus Pty Limited is an Australian
telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...
company headquartered in
Macquarie Park
Macquarie Park () is a suburb in the Northern Sydney region of Sydney, New South Wales, Australia. Macquarie Park is located 13 kilometres north-west of the Sydney central business district in the Local government in Australia, local government ...
, a suburb in the
Northern Sydney
Northern Sydney is a large metropolitan area in Greater Sydney, New South Wales, Australia on the north shore of Sydney Harbour and Parramatta River. The region embraces suburbs in Sydney's north-east, north and inner north west. Northern Syd ...
region of
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
,
New South Wales
New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
, Australia. It is a
wholly owned subsidiary
A subsidiary, subsidiary company, or daughter company is a company completely or partially owned or controlled by another company, called the parent company or holding company, which has legal and financial control over the subsidiary company. Unl ...
of
Singapore
Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
an telecommunications company
Singtel
Singapore Telecommunications Limited, trading as Singtel, is a Singaporean telecommunications conglomerate, the country's principal fixed-line operator and one of the four major mobile network operators operating in the country.
Overview
T ...
.
Optus is the second-largest telecommunications company in Australia, with over 11 million customers as of 2023.
Its mobile network covers 98.5% of the Australian population, with plans to cover 100% of Australia by 2025 through its partnership with
SpaceX
Space Exploration Technologies Corp., commonly referred to as SpaceX, is an America, American space technology company headquartered at the SpaceX Starbase, Starbase development site in Starbase, Texas. Since its founding in 2002, the compa ...
.
History
AUSSAT and deregulation (1981–1990)
Optus can trace its beginnings back to the formation of the Government-owned AUSSAT Pty Limited in 1981. In 1982, Aussat selected the Hughes 376 for their initial satellites, with the first, AUSSAT A1, launched in August 1985. AUSSAT satellites were used for both military and civilian satellite communications, and delivering
television
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, ...
services to remote
outback
The Outback is a remote, vast, sparsely populated area of Australia. The Outback is more remote than Australian bush, the bush. While often envisaged as being arid, the Outback regions extend from the northern to southern Australian coastli ...
communities.
With Aussat operating at a loss and with moves to
deregulate telecommunications in Australia
Telecommunications in Australia refers to communication in Australia through electronic means, using devices such as telephone, television, radio or computer, and services such as the telephony and broadband networks. Telecommunications have a ...
, the government decided to sell Aussat, coupled with a telecommunications licence. The licence was sold to Optus Communications – a consortium including:
* logistics firm
Mayne Nickless (24.99%);
*
UK telecommunications company
Cable & Wireless (24.50%);
*
US telecommunications company
BellSouth
BellSouth, LLC (stylized as ''BELLSOUTH'' and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia. BellSouth was one of the seven original Regional Bell Operating Companies after ...
(24.50%);
* AIDC Limited (10.00%);
* insurance and investment company
AMP (10.00%); and
* insurance and investment company
National Mutual (6.02%).
The new telecommunications company was designed to provide competition to then government owned telecommunications company ''Telecom Australia'', now known as
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecomm ...
.
Founding of Optus (1991–present)
Optus gained the second general carrier licence in January 1991.
After privatisation, AUSSAT became Optus and its first offering to the general public was to offer long-distance calls at cheaper rates than that of its competitor Telstra. The long-distance calling rates on offer were initially available by consumers dialing ''1'' before the area code and phone number. Following this, a ballot process was conducted by then regulator
AUSTEL, with customers choosing their default long-distance carrier. Customers who made no choice or did not respond to the mailout campaign automatically remained as a Telstra long-distance customer. Customers who remained with Telstra could dial the override code of ''1456'' before the area code and phone number to manually select Optus as the carrier for that single call. Since 1 July 1998, consumers have the choice of preselecting their preferred long-distance carrier or dialling the override code before dialling a telephone number.
The group began by building an interstate
fibre optic
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage in fiber-optic communications, where they permit transmission over longer distances and at ...
cable and a series of exchanges between Optus' interstate network and Telstra's local network. It also laid fibre optics into major office buildings and industrial areas, and focused on high bandwidth local, (interstate) long distance, and interstate calls for business. In its early years, Optus was only able to offer local and long-distance calls to residential customers through Telstra's local phone network. Telstra would carry residential to residential calls to Optus' exchanges, and then the calls would be switched to Optus' long-distance fibre optic network.
In 1993 Optus, along with Telstra and
Vodafone
Vodafone Group Public Limited Company () is a British Multinational company, multinational telecommunications company. Its registered office and global headquarters are in Newbury, Berkshire, England. It predominantly operates Service (economic ...
were licenced by the regulator Austel (now
ACMA) to provide
2G GSM
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
mobile telephony. Optus's mobile service launched in May of that year.
In 2024, Singtel held advanced talks with
Brookfield to sell a 20% stake in Optus. Brookfield and Singtel were unable to agree on terms, with Singtel claiming afterwards it remained committed to Optus and the Australian market.
Products and services

Key Optus products and services include:
Voice
* Residential and Commercial
POTS for local and long-distance telephony
* Commercial
VoIP
Voice over Internet Protocol (VoIP), also known as IP telephony, is a set of technologies used primarily for voice communication sessions over Internet Protocol (IP) networks, such as the Internet. VoIP enables voice calls to be transmitted as ...
and
VoDSL
*
Intelligent Network
The Intelligent Network (IN) is the standard network architecture specified in the ITU-T Q.1200 series recommendations. It is intended for fixed as well as mobile telecom networks. It allows operators to differentiate themselves by providing ...
applications, such as
free call,
1300 and
Interactive voice response
Interactive voice response (IVR) is a technology that allows telephone users to interact with a computer-operated telephone system through the use of voice and DTMF tones input with a keypad. In telephony, IVR allows customers to interact with a ...
services
Wireless .
*
4G/
LTE
LTE may refer to:
Science and technology
* LTE (telecommunication) (Long-Term Evolution), a mobile telephony standard
** LTE Advanced, an enhancement
** LTE Advanced Pro, a further enhancement
* Compaq LTE, a line of laptop computers
* Leukotrie ...
provided on 700 / 1800 / 2100 / 2300 / 2600 MHz covering 96.6% of the population.
*
5G provided on 2300 MHz and 3500 MHz.
*
Satellite telephony
A satellite telephone, satellite phone or satphone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefor ...
covering all of Australia.
Internet access
*
NBN Internet (via
Cable
Cable may refer to:
Mechanical
* Nautical cable, an assembly of three or more ropes woven against the weave of the ropes, rendering it virtually waterproof
* Wire rope, a type of rope that consists of several strands of metal wire laid into a hel ...
,
FTTB,
FTTC
Fiber to the ''x'' (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber opt ...
,
FTTN
Fiber to the ''x'' (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber optic ...
,
FTTP
Fiber to the ''x'' (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber optic ...
,
Fixed wireless
Fixed wireless is the operation of wireless communication devices or systems used to connect two fixed locations (e.g., building to building or tower to building) with a radio or other wireless link, such as laser bridge. Usually, fixed wireless ...
and
Satellite
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scient ...
)
* Residential
Dial-Up Internet
Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telepho ...
in all states
* Residential
Broadband Internet
In telecommunications, broadband or high speed is the wide- bandwidth data transmission that exploits signals at a wide spread of frequencies or several different simultaneous frequencies, and is used in fast Internet access. The transmission m ...
(via
cable
Cable may refer to:
Mechanical
* Nautical cable, an assembly of three or more ropes woven against the weave of the ropes, rendering it virtually waterproof
* Wire rope, a type of rope that consists of several strands of metal wire laid into a hel ...
and
DSL
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric di ...
) in all states (except the
Northern Territory
The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...
).
* Commercial and wholesale internet access
* Secure Gateway services for Federal Government departments
* NBN Wireless – not continued for new connects
Television
*
Optus Television
Optus Television is the cable television division of Australian telecommunications company Optus.
History
Its immediate predecessor was Optus Vision, a joint venture between Optus and Continental Cablevision, with small shareholdings by med ...
service provided in
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
,
Melbourne
Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victori ...
and
Brisbane
Brisbane ( ; ) is the List of Australian capital cities, capital and largest city of the States and territories of Australia, state of Queensland and the list of cities in Australia by population, third-most populous city in Australia, with a ...
, including
Foxtel Digital
Retail services are sold to customers via phone, internet or through retail outlets, especially
franchise chains
A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A ...
such as Optus World, Network Communications,
Strathfield,
TeleChoice, and
Allphones
Allphones was an Australian telecommunications retailer which specialised in offering a wide range of mobile and broadband related services across a range of carriers. The Allphones name is now only used for an online store, which is operated by ...
.
Optus' Customer Solutions and Services (CS&S) organisation is responsible for providing support to Optus Business customers. CS&S works with Optus' subsidiary
Alphawest to support
information technology
Information technology (IT) is a set of related fields within information and communications technology (ICT), that encompass computer systems, software, programming languages, data processing, data and information processing, and storage. Inf ...
services across Optus' large business, corporate and government client base.
Subsidiaries
A number of notable wholly owned subsidiaries operate as part of the Singtel Optus group. These are:
* Information Technology & Network Services
**
Alphawest
**
Uecomm
* Mobile Telephony
**
SIMplus
**
Virgin Mobile Australia
Virgin Mobile is a wireless communications brand used by seven independent brand-licensees worldwide. Virgin Mobile branded wireless communications services are available in Ireland, Canada, Colombia, Chile, Kuwait, Saudi Arabia, United Arab Emi ...
**
Amaysim
Amaysim Australia Ltd. is an Australian provider of mobile phone plans. Amaysim operates as a mobile virtual network operator on the Optus mobile network, and specialises in offering a range of SIM-only mobile plans. , Amaysim had over 1.5 mill ...
Until 20 January 2013, Optus sold mobile services under the brand name
Boost Mobile
DISH Wireless L.L.C., doing business as Boost Mobile, is an American telecommunications company and wholly owned subsidiary of EchoStar Corporation. Boost Mobile is the List of mobile network operators in the United States, fourth largest wirele ...
.
Optus also has a 50% stake in the now defunct
OPEL Networks.
Other wholly owned subsidiaries of note no longer have a significant active role as individual entities. These are as follows:
Reef Networks was formed in 1999 to provide an
optical fibre
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage in fiber-optic communications, where they permit transmission over longer distances and at ...
link between
Brisbane
Brisbane ( ; ) is the List of Australian capital cities, capital and largest city of the States and territories of Australia, state of Queensland and the list of cities in Australia by population, third-most populous city in Australia, with a ...
and
Cairns
Cairns (; ) is a city in the Cairns Region, Queensland, Australia, on the tropical north east coast of Far North Queensland. In the , Cairns had a population of 153,181 people.
The city was founded in 1876 and named after William Cairns, Sir W ...
in
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...
. Optus gained exclusive access to this link in 2001, ahead of acquiring the organisation in 2005.
XYZed was established by Optus in 2000 to provide wholesale business-grade
DSL
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric di ...
services under an individual brand, but today provides a collection of products only as part of the Optus Wholesale & Satellite division. XYZed established a network of
DSLAMs inside
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecomm ...
telephone exchanges, utilising
Unconditioned Local Loop services to reach end users.
Corporate affairs
Chief Executive Officer
Kelly Bayer Rosmarin commenced as CEO of Optus and Consumer Australia on 1 April 2020. She resigned on 20 November 2023.
Hybrid fibre-coax rollout
These practices meant that Optus was the largest customer of Telstra. To become competitive Optus would need to lay its own local phone network. To provide a
killer application
A killer application (often shortened to killer app) is any software that is so necessary or desirable that it proves the core value of some larger technology, such as its host computer hardware, video game console, software platform, or operatin ...
for this, the Australian Federal government sold subscription television licences. Optus, as well as the
Seven Network
Seven Network (stylised 7Network, and commonly known as Channel Seven or simply Seven) is an Australian commercial free-to-air Television broadcasting in Australia, television network. It is owned by Seven West Media, Seven West Media Limited, ...
, businessman
Kerry Stokes
Kerry Matthew Stokes (born John Patrick Alford on 13 September 1940) is an Australian businessman. He holds business interests in industries including electronic and print media, property, mining and construction equipment. He is most widely k ...
and American cable company Cablevision, formed the
Optus Vision consortium.
News Corporation
The original incarnation of News Corporation (abbreviated News Corp. and also variously known as News Corporation Limited) was an American Multinational corporation, multinational mass media corporation founded and controlled by media mogul Ru ...
and Telstra created the rival
Foxtel
NXE Australia Pty Ltd, trading as the Foxtel Group, is an Australian pay television company that operates cable television, direct-broadcast satellite, direct broadcast satellite television, and IPTV streaming services. It was formed in April ...
consortium.
Telstra's local phone network did not have the capability to deliver Foxtel pay television to consumers in the early 1990s, so Telstra identified a need to create a broadband network to support this new product.
As
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecomm ...
and Optus could not agree on terms for a joint broadband cable roll out, they laid two competing cable networks, in addition to Telstra's existing copper network, at a combined cost estimated of over A$6bn.
Whilst Telstra focused on creating a broadband network specifically for broadcast, Optus designed their cable network to provide telephony services in addition to broadcast television.
Optus is no longer a customer of Telstra's after deciding to move the funding used to lease
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecomm ...
's copper network into constructing their
hybrid fibre-coaxial
Hybrid fiber-coaxial (HFC) is a broadband telecommunications network that combines optical fiber and coaxial cable. It has been commonly employed globally by cable television operators since the early 1990s.
In a hybrid fiber-coaxial cable syst ...
network, the first in Australia.
Takeovers
Cable & Wireless with 24.5% stakeholder bought out
BellSouth
BellSouth, LLC (stylized as ''BELLSOUTH'' and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia. BellSouth was one of the seven original Regional Bell Operating Companies after ...
's equal 24.5% shareholding in July 1997. The company returned to profitability in 1998 and changed its name to Cable & Wireless Optus. Government relaxation of foreign ownership restrictions paved the way for the company to be floated – with Cable and Wireless increasing its holding to 52.5%) – and listed on the
Australian Securities Exchange
Australian Securities Exchange Ltd (ASX) is an Australian public company that operates Australia's primary Exchange (organized market), securities exchange, the Australian Securities Exchange (sometimes referred to outside of Australia as, or c ...
on 17 November 1998.
During 2001,
Singtel
Singapore Telecommunications Limited, trading as Singtel, is a Singaporean telecommunications conglomerate, the country's principal fixed-line operator and one of the four major mobile network operators operating in the country.
Overview
T ...
launched a takeover bid for Cable and Wireless Optus which was ultimately successful and the company became known as Singtel Optus.
In May 2004, Optus announced a $226.8 million bid for UEComm. The takeover was approved in July and completed in August.
In July 2005, Optus announced it would acquire Alphawest Ltd. for A$25.9 million. The buyout was completed in November 2005 and Alphawest is now an operating division of Optus Business.
On 12 January 2006, Optus acquired the remaining 74.15% of Virgin Mobile Australia for U$22.6 m, giving it 100% ownership.
OptusNet
Optus Communications offered its first business-focused internet products in 1998 under the OptusNet product family, offering in-house developed dial-up and high-speed services. Optus purchased one of Australia's pioneer ISPs, Microplex, in 1998 to provide consumer dial-up internet services. Separate to this, under the Optus Vision brand, a
cable broadband arm began as a joint venture with U.S. cable and content provider
Excite@Home
@Home Network was a high-speed cable Internet service provider from 1996 to 2002. It was founded by Milo Medin, cable companies Tele-Communications Inc. (TCI), Comcast, and Cox Communications, and William Randolph Hearst III, who was their fir ...
and was known as Optus@Home from its introduction in 1999 until it was renamed in 2002.
ADSL
Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over Copper wire, copper telephone lines than a conventional voiceband modem ...
services were offered from February 2004.
ADSL2+
G.992.5 (also referred to as ADSL2+, G.dmt.bis+, and G.adslplus) is an ITU-T standard for asymmetric digital subscriber line (ADSL) broadband Internet access. The standard has a maximum theoretical downstream sync speed of 24 megabits per secon ...
services were provided from December 2005.
OPEL Networks
In June 2007, joint venture subsidiary
OPEL Networks was awarded government funding towards the cost of building a regional broadband network. Optus was to be contracted to build the network on behalf of OPEL.
In April 2008, after a change of the Federal Government from the
Liberal Party of Australia
The Liberal Party of Australia (LP) is the prominent centre-right political party in Australia. It is considered one of the two major parties in Australian politics, the other being the Australian Labor Party (ALP). The Liberal Party was fo ...
coalition to the
Australian Labor Party
The Australian Labor Party (ALP), also known as the Labor Party or simply Labor, is the major Centre-left politics, centre-left List of political parties in Australia, political party in Australia and one of two Major party, major parties in Po ...
, the new government terminated the funding agreement and the project was halted, with its functions to be replaced by the
National Broadband Network
The National Broadband Network (NBN) is Australia’s national wholesale open-access data network. It includes wired and radio communication components rolled out and operated by NBN Co, a government-owned corporation. Internet service provid ...
.
Terria
Optus is part of a consortium – now known as
Terria – that in July 2006 announced their intention to make a combined bid to build the proposed
National Broadband Network
The National Broadband Network (NBN) is Australia’s national wholesale open-access data network. It includes wired and radio communication components rolled out and operated by NBN Co, a government-owned corporation. Internet service provid ...
.
Outsourcing
Since 2005, Optus has
outsourced some
customer service
Customer service is the assistance and advice provided by a company to those who buy or use its products or services, either in person or remotely. Customer service is often practiced in a way that reflects the strategies and values of a firm, and ...
functions to
Concentrix
Concentrix Corporation is an American business process outsourcing company headquartered in Newark, California. It was a subsidiary of SYNNEX Corporation (NYSE: SNX) since 2006 and went public as an independent company on December 1, 2020 ...
and 247.ai, with the outsourcer providing 800 staff operating
offshore in India, supplementing Optus' 3,000-plus onshore
call centre
A call centre ( Commonwealth spelling) or call center ( American spelling; see spelling differences) is a managed capability that can be centralised or remote that is used for receiving or transmitting a large volume of enquiries by telephone ...
staff. Some functions have also been supplemented in the Philippines. Optus also uses 24/7 Inc. for telephone & chat based offshore support.
In October 2006, Optus announced that it would outsource 100 contracting jobs to another
Singtel
Singapore Telecommunications Limited, trading as Singtel, is a Singaporean telecommunications conglomerate, the country's principal fixed-line operator and one of the four major mobile network operators operating in the country.
Overview
T ...
subsidiary, IT company
NCS, in Singapore.
Infrastructure
Optus' fully owned network infrastructure consists of the following:
Network backbone
* ExtraTerrestrial
Fibre Optic
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage in fiber-optic communications, where they permit transmission over longer distances and at ...
Network
** Cairns to Brisbane
** Brisbane to Sydney (
fully diverse over two physically separate paths)
** Sydney to Melbourne (fully diverse over two physically separate paths, one via
Canberra
Canberra ( ; ) is the capital city of Australia. Founded following the Federation of Australia, federation of the colonies of Australia as the seat of government for the new nation, it is Australia's list of cities in Australia, largest in ...
, one via the coast)
** Melbourne to
Adelaide
Adelaide ( , ; ) is the list of Australian capital cities, capital and most populous city of South Australia, as well as the list of cities in Australia by population, fifth-most populous city in Australia. The name "Adelaide" may refer to ei ...
** Adelaide to
Perth
Perth () is the list of Australian capital cities, capital city of Western Australia. It is the list of cities in Australia by population, fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth . The ...
*
SDH Digital Microwave
**
Hobart
Hobart ( ) is the capital and most populous city of the island state of Tasmania, Australia. Located in Tasmania's south-east on the estuary of the River Derwent, it is the southernmost capital city in Australia. Despite containing nearly hal ...
to
Launceston
*
Satellite
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scient ...
** Fleet of
geostationary
A geostationary orbit, also referred to as a geosynchronous equatorial orbit''Geostationary orbit'' and ''Geosynchronous (equatorial) orbit'' are used somewhat interchangeably in sources. (GEO), is a circular geosynchronous orbit in altitud ...
satellites (See
Optus fleet of satellites
This is a list of the satellites operated by Optus, an Australian telecommunications company. The satellite communications facility is located at Belrose on Sydney's Northern Beaches. Optus' satellites are divided into 4 classes A, B, C and D. As ...
)
** International Earth Stations in Sydney and Perth
** National Earth Stations in Brisbane, Canberra, Melbourne, Adelaide, Perth, Hobart and
Darwin
* Regional
exchanges in Sydney (Rosebery), Melbourne, Brisbane, Canberra, Adelaide and Perth.
* Telehousing Data Centres in Melbourne and Sydney
Customer access network
*
Hybrid fibre-coaxial
Hybrid fiber-coaxial (HFC) is a broadband telecommunications network that combines optical fiber and coaxial cable. It has been commonly employed globally by cable television operators since the early 1990s.
In a hybrid fiber-coaxial cable syst ...
(HFC) network in Sydney, Brisbane and Melbourne, providing consumer
fixed telephony
A landline is a physical telephone connection that uses metal wires or optical fiber from the subscriber's premises to the network, allowing multiple phones to operate simultaneously on the same phone number. It is also referred to as plain old ...
,
cable internet
In telecommunications, cable Internet access, shortened to cable Internet, is a form of broadband internet access which uses the same infrastructure as cable television. Like digital subscriber line (DSL) and fiber to the premises, cable Internet ...
and
cable television
Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This contrasts with bro ...
services.
* CBD optical fibre rings in Sydney, Melbourne, Brisbane, Adelaide, Perth, Canberra and
Wollongong
Wollongong ( ; Dharawal: ''Woolyungah'') is a city located in the Illawarra region of New South Wales, Australia. The name is believed to originate from the Dharawal language, meaning either 'five islands/clouds', 'ground near water' or 'sound ...
, providing direct access for corporate and government services.
*
DSLAMs in certain
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecomm ...
local telephone exchanges in all states. Originally only providing business-grade
DSL
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric di ...
services, newer installations also provide consumer
DSL
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric di ...
and
POTS telephony.
OptusNet also provides
Cable
Cable may refer to:
Mechanical
* Nautical cable, an assembly of three or more ropes woven against the weave of the ropes, rendering it virtually waterproof
* Wire rope, a type of rope that consists of several strands of metal wire laid into a hel ...
internet. In August 2010, OptusNet released an upgrade of its HFC network to the
DOCSIS
Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable television (CATV) system. It is used by many cable televisio ...
3.0 standard, which enabled customers to access a maximum theoretical downstream bandwidth of 100
Megabits
The bit is the most basic unit of information in computing and digital communication. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represented as ...
. OptusNet is also one of the few ISPs in Australia to currently provide
ADSL2+
G.992.5 (also referred to as ADSL2+, G.dmt.bis+, and G.adslplus) is an ITU-T standard for asymmetric digital subscriber line (ADSL) broadband Internet access. The standard has a maximum theoretical downstream sync speed of 24 megabits per secon ...
via its own
DSLAMs, which it also resells to other ISPs.
Mobile network
Mobile network equipment is from Nortel, Nokia and Huawei and antennas are sourced from Andrews, RFS, Argus and Kathrein.
The Optus network operates on the following bandwidth frequencies across Australia:
*
3G UMTS
The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. UMTS uses Wideband Code Division Multiple Access, wideband code-division multiple access (W-CDMA) radio access technolog ...
900/2100 MHz
*
4G LTE
LTE may refer to:
Science and technology
* LTE (telecommunication) (Long-Term Evolution), a mobile telephony standard
** LTE Advanced, an enhancement
** LTE Advanced Pro, a further enhancement
* Compaq LTE, a line of laptop computers
* Leukotrie ...
700 / 900 / 1800 / 2100 / 2300 / 2600 MHz network which has been in progressive rollout since 2012.
VoLTE
Voice over Long-Term Evolution (acronym VoLTE) is an LTE high-speed wireless communication standard for voice calls and SMS using mobile phones and data terminals. VoLTE has up to three times more voice and data capacity than older 3G UMTS an ...
is currently being rolled out across Australia. For now,
VoLTE
Voice over Long-Term Evolution (acronym VoLTE) is an LTE high-speed wireless communication standard for voice calls and SMS using mobile phones and data terminals. VoLTE has up to three times more voice and data capacity than older 3G UMTS an ...
is only available in CBD and metro areas in
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
,
Melbourne
Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victori ...
, Adelaide, Brisbane, Perth and Canberra on selected devices purchased on postpaid contracts. Until VoLTE has been fully rolled out, voice calling is still reliant on the 3G network (and formerly the 2G network until it was terminated).
*
5G NR 3500 MHz rollout started in October 2019
The
2G GSM
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
900/1800 MHz network was terminated on 3 April 2017 in
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...
and
Northern Territory
The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...
.
2G GSM was completely terminated on 1 August 2017 when 2G was disconnected in
Victoria,
New South Wales
New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
,
Australian Capital Territory
The Australian Capital Territory (ACT), known as the Federal Capital Territory until 1938, is an internal States and territories of Australia, territory of Australia. Canberra, the capital city of Australia, is situated within the territory, an ...
,
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...
,
Tasmania
Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ...
and
South Australia
South Australia (commonly abbreviated as SA) is a States and territories of Australia, state in the southern central part of Australia. With a total land area of , it is the fourth-largest of Australia's states and territories by area, which in ...
. To remain connected, a device that is capable of running 3G at 900 MHz is now required after 2G was completely disconnected across Australia.
On 28 October 2024, the 3G UMTS service provided by Optus was shut down. This affects other providers reliant on their network, including
Amaysim
Amaysim Australia Ltd. is an Australian provider of mobile phone plans. Amaysim operates as a mobile virtual network operator on the Optus mobile network, and specialises in offering a range of SIM-only mobile plans. , Amaysim had over 1.5 mill ...
and
Virgin Mobile Australia
Virgin Mobile is a wireless communications brand used by seven independent brand-licensees worldwide. Virgin Mobile branded wireless communications services are available in Ireland, Canada, Colombia, Chile, Kuwait, Saudi Arabia, United Arab Emi ...
. To remain connected, customers are required to have a phone capable of connecting to their 4G LTE or 5G NR services. All phones incapable of using VoLTE will be prevented from accessing the Optus network due to legal requirements to ensure access to
emergency 000 calls.
Partly owned infrastructure
Part-owned network infrastructure includes:
*
3G mobile network, a joint venture with
Vodafone Australia
*
Southern Cross Cable
The Southern Cross Cable is a trans-Pacific Ocean, Pacific network of telecommunications cables commissioned in 2000. The network is operated by the Bermuda-registered company ''Southern Cross Cables Limited''. The network has of Submarine co ...
, a
fully diverse submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
optical fibre
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage in fiber-optic communications, where they permit transmission over longer distances and at ...
link across the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
between Sydney,
New South Wales
New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
and
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
in the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
. The Singtel group owns a 40% interest in Southern Cross Cables Limited. This interest was originally owned by Singtel Optus Pty Limited, before ownership was transferred to parent company Singtel during the March 2006 – June 2006 quarter.
Advertising and sponsorship

Between 1994 and 2005 Optus had the naming rights to the Carlton football clubs original home ground in Princes Park. It was called Optus Oval until the ground was retired by the AFL in 2005.
Optus was the main sponsor of the
1997 ARL season
The 1997 Australian Rugby League season was the 90th season of professional rugby league football in Australia, and the third season run by the Australian Rugby League. While several clubs had left the League to compete in the 1997 Super League ...
.
In 2016, Optus signed a 10-year partnership agreement with the
Australian Olympic Committee
The Australian Olympic Committee (AOC) is the National Olympic Committee responsible for developing, promoting, and protecting the Olympic Movement in Australia. The AOC has the exclusive responsibility for the representation of Australia at ...
to be the official partner of the Australian Olympic Team and the Australian Paralympic Team until 2026.
In 2017, Optus won naming rights to
Perth Stadium
Perth Stadium, commercially known as Optus Stadium due to sponsorship reasons, is a multi-purpose stadium in the Burswood, Western Australia, Burswood suburb of Perth, Western Australia. It was completed during late 2017 and officially opened ...
where it would be known as Optus Stadium. Optus and the
Government of Western Australia
The Government of Western Australia is the States and territories of Australia, Australian state democratic administrative authority of Western Australia. It is also commonly referred to as the WA Government or the Western Australian Governmen ...
agreed to a 10-year naming right worth approximately A$50 million.
Optus also has a long-term partnership with the
Adelaide Crows
The Adelaide Football Club, nicknamed the Crows, is a professional Australian rules football club based in Adelaide, South Australia that was founded in 1990. The Crows have fielded a men's team in the Australian Football League (AFL) since 199 ...
in the
AFL. Optus has been a partner of the
Collingwood Magpies in the
AFL Women's
AFL Women's (AFLW) is Australia's national semi-professional Australian rules football in Australia, Australian rules football competition for women's Australian rules football, female players. The 2017 AFL Women's season, first season of the l ...
since 2018.
Optus is the current major sponsor for the No. 25
Walkinshaw Andretti United Holden ZB Commodore driven by
Chaz Mostert
Chaz Michael Mostert (born 10 April 1992) is an Australian professional racing driver competing in the Supercars Championship, Repco Supercars Championship. He currently drives the No. 25 Ford Mustang GT for Walkinshaw Andretti United. Mostert ...
Awards
Incidents
2022 cyberattack
Around 22 September 2022, Optus systems sustained a significant
cyberattack
A cyberattack (or cyber attack) occurs when there is an unauthorized action against computer infrastructure that compromises the confidentiality, integrity, or availability of its content.
The rising dependence on increasingly complex and inte ...
that resulted in a major data breach of both current and former customers' personal information, including customers’ names, dates of birth, phone numbers and email addresses, with a smaller subset of customers having their street addresses, driving licence details and passport numbers leaked. Optus CEO Kelly Bayer Rosmarin urged customers to exercise "heightened awareness" regarding transactions with their Optus and other accounts. Rosmarin emphasised that passwords were not compromised. The CEO said that the "worst-case scenario" regarding the number of customers whose data had been leaked was 9.8 million customers, but believes the actual number to be far lower.
On 24 September 2022, Australian news outlets ''
The Age
''The Age'' is a daily newspaper in Melbourne, Australia, that has been published since 1854. Owned and published by Nine Entertainment, ''The Age'' primarily serves Victoria (Australia), Victoria, but copies also sell in Tasmania, the Austral ...
'' and ''
The Sydney Morning Herald
''The Sydney Morning Herald'' (''SMH'') is a daily Tabloid (newspaper format), tabloid newspaper published in Sydney, Australia, and owned by Nine Entertainment. Founded in 1831 as the ''Sydney Herald'', the ''Herald'' is the oldest continuous ...
'' reported that Optus was investigating the authenticity of a ransom demand of US$1 million made on a hacking forum. The demand gave Optus one week to pay the ransom in cryptocurrency else the data will be sold for US$300,000 to whoever else wants it.
On 6 October, the
Australian Federal Police
The Australian Federal Police (AFP) is the principal Federal police, federal law enforcement agency of the Australian Government responsible for investigating Crime in Australia, crime and protecting the national security of the Commonwealth ...
announced the arrest of a 19-year-old man who had allegedly threatened 93 Optus customers by saying that he would use their information leaked in the attack to commit financial crimes, unless they paid AUD $2,000.
In response to the cyberattack, the
Australian federal government
The Australian Government, also known as the Commonwealth Government or simply as the federal government, is the national Executive (government), executive government of Australia, a federalism, federal Parliamentary system, parliamentary con ...
announced emergency regulation on 6 October, in the form of a 12-month amendment to the ''Telecommunications Regulations 2021'' to "enable telecommunications companies to temporarily share approved government identifier information with regulated financial services entities."
On 11 October, the Office of the Australian Information Commissioner launched an investigation, the aim of which is to explore the company's handling of customers' data.
2023 nationwide outage
Early on 8 November 2023, an undetermined issue caused a nationwide outage in Optus Mobile and Fixed Internet services. The outage directly impacted more than 10 million customers, including government services, hospitals and businesses. Optus Mobile customers reported that their phones showed 'SOS' on the signal indicator, which is a sign the regular network is down, but mobile phones still have access to alternate networks in the event of an emergency call by using a so-called camping mechanism; however, Optus landlines were unable to make emergency
triple-zero calls. The outage affected the communication systems for Melbourne's train network, so for safety reasons the whole network was halted until backup communications commenced, leading to major delays and cancellations throughout the day.
See also
*
Internet in Australia
Internet in Australia first became available on a permanent basis to universities in Australia in May 1989, via AARNet. Pegasus Networks was Australia's first public Internet provider in June 1989. The first commercial dial-up Internet Service ...
*
National Broadband Network
The National Broadband Network (NBN) is Australia’s national wholesale open-access data network. It includes wired and radio communication components rolled out and operated by NBN Co, a government-owned corporation. Internet service provid ...
*
Telecommunications in Australia
Telecommunications in Australia refers to communication in Australia through electronic means, using devices such as telephone, television, radio or computer, and services such as the telephony and broadband networks. Telecommunications have a ...
References
External links
*
Photos: Optus's new home(
ZDNet Australia)
{{Authority control
Australian companies established in 1981
Companies based in Sydney
Telecommunications companies established in 1981
Australian brands
Internet service providers of Australia
Mobile phone companies of Australia
Satellite operators
Temasek Holdings
Telecommunications companies of Australia
Australian subsidiaries of foreign companies
1998 initial public offerings
2001 mergers and acquisitions
Former Commonwealth Government-owned companies of Australia