A data cap, often referred to as a bandwidth cap, is a restriction imposed on data transfer over a network. In particular, it refers to policies imposed by an
internet service provider
An Internet service provider (ISP) is an organization that provides a myriad of services related to accessing, using, managing, or participating in the Internet. ISPs can be organized in various forms, such as commercial, community-owned, no ...
to limit customers' usage of their services; typically, exceeding a data cap would require the subscriber to pay additional fees. Implementation of a data cap is sometimes termed a fair access policy, fair usage policy, or usage-based billing by ISPs.
American ISPs have asserted that data caps are required to provide a "fair" service to their respective subscribers. The use of data caps has been criticized for becoming increasingly unnecessary, as decreasing infrastructure costs have made it cheaper for ISPs to increase the capacity of their networks to keep up with the demands of their users, rather than place arbitrary limits on usage. It has also been asserted that data caps are meant to help protect
pay television
Pay television, also known as subscription television, premium television or, when referring to an individual service, a premium channel, refers to Subscription business model, subscription-based television services, usually provided by multichan ...
providers that may also be owned by an ISP from competition with
over-the-top streaming services.
Example cap
In 2016,
Comcast
Comcast Corporation, formerly known as Comcast Holdings,Before the AT&T Broadband, AT&T merger in 2001, the parent company was Comcast Holdings Corporation. Comcast Holdings Corporation now refers to a subsidiary of Comcast Corporation, not th ...
offered a service plan with a data cap of 1 terabyte.
At contemporary data consumption rates, each family member of four would need to separately watch 100 movies in a month to approach the cap.
In that case, typical data usage habits would not exceed that cap.
Unlimited data
"Unlimited data" is sometimes a
marketing promotion in which an
Internet service provider
An Internet service provider (ISP) is an organization that provides a myriad of services related to accessing, using, managing, or participating in the Internet. ISPs can be organized in various forms, such as commercial, community-owned, no ...
offers access to Internet without cutting service at the data cap.
However, after a user passes some data cap, the provider will begin
bandwidth throttling
Bandwidth throttling consists in the limitation of the communication speed (bytes or kilobytes per second), of the ingoing (received) or outgoing (sent) data in a network node or in a network device such as computers and mobile phones.
The d ...
to decrease the user's data access speed, slowing down the user's internet use.
By region
As of October 2015, there were 58 wired broadband providers in the US that used data caps, among them major wireless cell phone providers such as
Verizon Wireless and
AT&T
AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the w ...
.
Before 2010 there was a trend of providing unlimited data without bandwidth throttling. In the United States the
Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States government that regulates communications by radio, television, wire, internet, wi-fi, satellite, and cable across the United States. The FCC maintains j ...
has fined service providers for offering unlimited data in a way that misled consumers. In June 2015, the FCC fined
AT&T Mobility for misleading consumers. In October 2016 the FCC reached a settlement with
T-Mobile T-Mobile is the brand of telecommunications by Deutsche Telekom
Deutsche Telekom AG (, ; often just Telekom, DTAG or DT; stylised as ·T·) is a partially state-owned German telecommunications company headquartered in Bonn and the largest telec ...
in which they would pay for failing to disclose restrictions on their unlimited data plans.
Iranian Communications Regulatory Authority set a Fair Usage Policy in 2017.
Justification
American internet service providers have asserted that data caps are needed to provide "fair",
tiered services at different price points based on speed and usage.
In 2016,
Sonic.net CEO Dane Jasper criticized the historical assertions that data caps are meant to conserve network capacity, arguing that the cost of actually delivering service had "declined much faster than the increase in data traffic". When Sonic was first established in 2008, its infrastructure costs were equivalent to 20% of its revenue, but these had fallen to only 1.5% by 2016 because of the declining equipment costs.
Suddenlink CEO Jerry Kent made a similar assertion in an investors' call, stating that the "days" of having to make investments to keep up with customer demand were "over", and there would be "significant free cash flow generated from the cable operators as our capital expenditures continue to come down."
As most major U.S. internet providers own television providers, it has also been suggested that data caps are intended to discourage users from
dropping their pay television subscriptions by placing ''de facto'' restrictions on the use of competing streaming video services that are delivered over the internet, such as
Netflix
Netflix is an American subscription video on-demand over-the-top streaming service. The service primarily distributes original and acquired films and television shows from various genres, and it is available internationally in multiple lang ...
.
The lobbying group
Internet Association additionally argued that data caps are meant to create "
artificial scarcity", especially in markets where there is limited competition in broadband, also pointing out that some providers offer their own streaming video services that are
exempted from data cap policies, such as Comcast's Stream TV. Comcast defended the exemption by stating that the service is not delivered over the public internet; it can only be used while connected to the provider's home Wi-Fi router.
See also
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Bandwidth (computing)
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth.
This definition of ''bandwidth'' is in contrast to the field of signal ...
*
Bandwidth management
Bandwidth management is the process of measuring and controlling the communications (traffic, packets) on a network link, to avoid filling the link to capacity or overfilling the link,https://www.internetsociety.org/wp-content/uploads/2017/08/BWro ...
*
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Uncapping
References
{{reflist
External links
BroadbandReports.com review of Optimum Online policies
Broadband
Data transmission
Net neutrality