TriMob LLC ()

d/b/a A trade name, trading name, or business name is a pseudonym used by companies that do not operate under their registered company name. The term for this type of alternative name is fictitious business name. Registering the fictitious name with ...

3Mob, formerly Ukrtelecom (Ukrainian: (ОГО! мобільний) "Укртелеком"), formerly Utel () is a

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 in

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

. It is a subsidiary of

Ukrtelecom Ukrtelecom JSC () ( PFTS:br>UTLM is Ukraine's monopolist telephone company, also active in the ISP and mobile markets. The company was governed by the Ministry of Transportation and Communications of Ukraine with 92.9% shares belonging to the ...

, formerly government-owned fixed phone operator.

History

Utel launched Ukraine's first commercial 3G

cellular network A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless network, wireless and the network is distributed over land areas called ''cells'', each served by at least one fixed-locatio ...

based on the

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 ...

HSDPA High Speed Packet Access (HSPA) is an amalgamation of two mobile protocols—High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA)—that extends and improves the performance of existing 3G mobile telecommunic ...

standard on November 1, 2007. Until 2015, 3Mob was the only network in Ukraine that provided UMTS 2100 service (other providers provided data services on EDGE and CDMA technology). It's 3G coverage exists only in

Kyiv Kyiv, also Kiev, is the capital and most populous List of cities in Ukraine, city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper, Dnieper River. As of 1 January 2022, its population was 2, ...

, free 2G/3G roaming is available in Vodafone-Ukraine network.

Network

The network is built on the

W-CDMA 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 (W-CDMA) radio access technology to offer greater spectral efficiency ...

technology under the

standard and operates at the frequency of 2100 MHz (two FDD bands: 1935—1950 MHz and 2125—2140 MHz). It also supports the

protocol, which theoretically allows achieving a download speed of 14.4 Mbps. Until 2010, services were provided at a download speed of up to 3.6 Mbps, from 2010 a speed of up to 7.2 Mbps was available. The core of the network consists of data transmission switches

SGSN The GPRS core network is the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit Internet Protocol (IP) packets to external networks such as the Internet. The GPRS system is an integ ...

and

GGSN The GPRS core network is the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit Internet Protocol (IP) packets to external networks such as the Internet. The GPRS system is an integ ...

, a switch for voice and video calls MSS and six voice traffic gateways MGW, which are located in the six largest cities of the country. As of 2011, the 3G network was available in more than 100 cities of Ukraine, where about 35% of the country's population lives, including all regional and the largest industrial and administrative centers of Ukraine. From September 29, 2014, the operator's services became unavailable in

Sevastopol Sevastopol ( ), sometimes written Sebastopol, is the largest city in Crimea and a major port on the Black Sea. Due to its strategic location and the navigability of the city's harbours, Sevastopol has been an important port and naval base th ...

. The 2G network (services

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 ...

and

GPRS General Packet Radio Service (GPRS), also called 2.5G, is a mobile data standard on the 2G cellular communication network's Global System for Mobile Communications, global system for mobile communications (GSM). Networks and mobile devices wit ...

in national roaming mode) has been unavailable in the territory of

Crimean Peninsula Crimea ( ) is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukrai ...

since September 22, 2014 On the night of February 9 to 10, 2015, due to the seizure of the company's assets, communication services were discontinued throughout the territory of the AR Crimea. As of August 1, 2017, the network had the least coverage, not being updated since 2015. On July 11, 2017, LLC «TriMob» received from NCCIR a copy of its own license to provide mobile communication services with the right to technical maintenance and operation of the telecommunications network and granting frequencies to LLC « Lycamobile Ukraine» throughout the territory of Ukraine, based on which on July 24 the operator «Lycamobile Ukraine» began its operation. At the same time, «Ukrtelecom» announced its intention to invest $2 million in the network owned by «TriMob», primarily to improve the reliability of Lycamobile's connection in Ukraine. In December 2019, «Ukrtelecom» announced its intention to leave the frequency resource for «TriMob» only within the city of Kyiv, and outside its limits to use the resource licensed to Lycamobile. As of January 2020, TriMob discontinued support for its own

network, except for the city of Kyiv, switching subscribers to national roaming.

References

External links

Official site
{{Mobile phone companies in Ukraine Mobile phone companies of Ukraine Technology companies based in Kyiv