AT&T Mobility

AT&T Mobility is an American GSM and UMTS provider.

As of July 2017 in Jefferson County Missouri, AT&T has been having problems with VoLTE and ViLTE (Voice over LTE and Video over LTE) along with VoWiFi and ViWiFi (Voice over WiFi and Video over WiFi)..

GSM/UMTS Cell ID Layout

Sector ID	Frequency Band	Direction
1	850 MHz	North
2	850 MHz	South East
3	850 MHz	South West
7	1900 MHz	North
8	1900 MHz	South East
9	1900 MHz	South West

LTE Cell ID Layout

Sector ID	Frequency Band	Direction
1	850 MHz	North
2	850 MHz	South East
3	850 MHz	South West
8	1900 MHz	North
9	1900 MHz	South East
10	1900 MHz	South West
15	700 MHz	North
16	700 MHz	South East
17	700 MHz	South West
22	1700/2100 MHz	North
23	1700/2100 MHz	South East
24	1700/2100 MHz	South West