Inc. is a prominent telecommunications company operating within the United States. Its establishment dates back to 1877, with its roots tied to the original Bell
Telephone Company founded by Alexander Graham Bell. , standing for the American Telephone and Telegraph Company, was incorporated in 1885 as a subsidiary of Bell, to build and operate the first long-distance telephone network. The company's ownership has seen significant changes over the years. It was initially a monopoly, known as the Bell System, which provided telephone services across the majority of the United States and Canada. However, due to antitrust concerns, was required to divest its regional subsidiaries, leading to the breakup of the Bell System in 1984. The current Inc. is the result of several mergers and acquisitions, most notably the purchase of the original by one of its spin-offs, Southwestern Bell Corporation, in 2005. Today, is a publicly traded company with shares listed on the New York Stock Exchange.Alias
AT&T Mobility LLC
Country
Type
Network Operator
AT&T 3G Network
3G Frequency Bands
Network Frequency Band | Status | Known UARFCNs |
---|---|---|
Active
|
||
Active
|
3G Network Events
Date | Event | Subtype |
---|---|---|
|
Launch of 3G Network
|
Launch
|
AT&T 4G Network
4G Frequency Bands
Network Frequency Band | Max. Channel Bandwidth | Status | Known EARFCNs |
---|---|---|---|
20
|
Active
|
||
5
|
Active
|
||
10
|
Active
|
||
10
|
Active
|
||
5
|
Active
|
||
15
|
Active
|
||
10
|
Active
|
4G Network Events
Date | Event | Subtype |
---|---|---|
|
Launch of 4G Network
|
Launch
|
AT&T 5G Network
5G Frequency Bands
Network Frequency Band | Max. Channel Bandwidth | Status | Known EARFCNs |
---|---|---|---|
100
|
Active
|
||
5
|
Active
|
||
Active
|
5G Network Events
Date | Event | Subtype |
---|---|---|
|
Launch of 5G Network
|
Launch
|