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AT&T Mobility (view source)

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Updated formatting of tables. Macro Cell
(Added Problems to VoLTE and VoWiFi.)
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(Updated formatting of tables. Macro Cell)
 
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AT&T Mobility is an American GSM and UMTS provider.
AT&T Mobility (or AT&T Wireless) is an American telecommunication company. For general information regarding AT&T, please check out Wikipedia page: [[wikipedia:AT%26T|AT&T]]. [[File:AT%26T_logo_2016.svg|right|175px]]


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)..
== Antenna ==
AT&T has multiple contracts with different manufacturers for antenna.


== GSM/UMTS Cell ID Layout ==
== UMTS Mapping Practices ==


{| border="1"
AT&T's GSM and UMTS networks have been decommissioned.
| [[Sector ID]] || [[Frequency Band]] || [[Direction]]
 
{| class="wikitable sortable"
|+ GSM/UMTS Cell ID Layout
|-
! Sector ID !! Band !! Direction
|-
|-
| 1 || 850 MHz || North
| 1 || 850 MHz || North
Line 22: Line 27:
|}
|}


== LTE Cell ID Layout ==
== LTE Mapping Practices ==
=== Macro Tower ===
Macro towers are those structures designed for cellular, mobile radio, public safety and microwave operations. They are usually at high ground for good RF propagation.
 
 
==== eNB ====
eNB IDs vary by region. Under the [[wikipedia:OpenSteetMap|OpenSteetMap]] basemap, AT&T divides the whole country into various regions (e.g., [https://midatlanticregion.att.com/ AT&T Mid-Atlantic], [https://southregion.att.com/ AT&T South]). It is common that adjacent counties of the same state will use completely different conventions.
 
The estimated location of eNB does not necessarily mean the tower is at the nearby location. Due to terrain, weather, API and many other factors, the data may not be enough to precisely reflect the correct location. '''Deleting seemingly wrong eNBs with caution, as this may erase the data from other people.'''
 
==== Cell ====
Generally, AT&T strictly follows such convention on cell ID numbering (3 sectors):
 
* Band '''5''': 1, 2, 3
* Band '''2''': 8, 9, 10; 179, 180, 181; 208, 209, 210
* Band 4<sup>1</sup>/'''66''': 22, 23, 24; 222, 223, 224
* Band '''12'''/17<sup>1</sup>: 15, 16, 17;
* Band '''30''': 149, 150, 151;
* Band '''14'''<sup>2</sup>: 193, 194, 195; 215, 216, 217;
 
''1: Old band plan, recent cellphones use new band plan in almost all cases.''
 
''2: In areas without band 12 spectrum license, ATT may directly use cell 15, 16, 17 for band 14 (e.g., West Virginia, Nebraska).''
 
If the cell tower has more than 3 sectors while only using 1 eNB, the naming pattern may be a little bit different. For example: 8, 9, 10, 11 for band 2.


{| border="1"
Band 29 and Band 46 cannot be associated with eNB but still can be recognized by the App.
| [[Sector ID]] || [[Frequency Band]] || [[Direction]]
 
 
{| class="wikitable sortable"
|+ LTE Cell ID Layout
|-
! Sector ID !! Band !! Direction
|-
| 1 || 850 MHz (CLR) || Northeast
|-
| 2 || 850 MHz (CLR) ||  South
|-
| 3 || 850 MHz (CLR) || Northwest
|-
| 8 || 1900 MHz (PCS) || Northeast
|-
| 9 || 1900 MHz (PCS) || South
|-
| 10 || 1900 MHz (PCS) || Northwest
|-
| 15 || 700 MHz || Northeast
|-
| 16 || 700 MHz || South
|-
| 17 || 700 MHz || Northwest
|-
| 22 || 1700/2100 MHz (AWS-1) || Northeast
|-
| 23 || 1700/2100 MHz (AWS-1) || South
|-
| 24 || 1700/2100 MHz (AWS-1) || Northwest
|-
| 43 || 700 MHz (Public Safety) || Northeast
|-
| 44 || 700 MHz (Public Safety) || South
|-
| 45 || 700 MHz (Public Safety) || Northwest
|-
| 149 || 2300 MHz (WCS) || Northeast
|-
| 150 || 2300 MHz (WCS) || South
|-
| 151 || 2300 MHz (WCS) || Northwest
|-
| 208 || 1900 MHz (PCS) (2nd carrier) || Northeast
|-
| 209 || 1900 MHz (PCS) (2nd carrier) || South
|-
| 210 || 1900 MHz (PCS) (2nd carrier) || Northwest
|-
| 222 || 1700/2100 MHz (AWS-1) (2nd carrier) || Northeast
|-
| 223 || 1700/2100 MHz (AWS-1) (2nd carrier) || South
|-
| 224 || 1700/2100 MHz (AWS-1) (2nd carrier) || Northwest
|-
|-
| 1 || 850 MHz || North
| 215 || 700 MHz (Public Safety) || Northeast
|-
| 216 || 700 MHz (Public Safety) || South
|-
|-
| 2 || 850 MHz || South East
| 217 || 700 MHz (Public Safety) || Northwest
|-
|-
| 3 || 850 MHz || South West
|}
 
==== PCI ====
 
=== Small Cell / Microcell ===
A small cell is a radio access point with low radio frequency (RF) power output, footprint and range. It is operator-controlled, and can be deployed indoors or outdoors, and in licensed, shared or unlicensed spectrum.<br>
This should not be confused with the "MicroCell" branded Femtocell that AT&T used to have.<br>
 
==== Outdoor Microcell ====
AT&T has a consistent cell numbering scheme for outdoor small cells. Multiple microcells may share one eNB.<br>
 
{| class="wikitable sortable"
|+ Small Cell
|-
|-
| 8 || 1900 MHz || North
! Cell ID !! Band
|-
|-
| 9 || 1900 MHz || South East
| 35 || 2 (PCS)
|-
|-
| 10 || 1900 MHz || South West
| 63 || 2 (PCS)
|-
|-
| 15 || 700 MHz || North
| 99 || 2 (PCS)
|-
|-
| 16 || 700 MHz || South East
| 49 || 4 (AWS)
|-
|-
| 17 || 700 MHz || South West
| 77 || 4 (AWS)
|-
|-
| 22 || 1700/2100 MHz || North
| 115 || 4 (AWS)
|-
|-
| 23 || 1700/2100 MHz || South East
| 189 || 66 (AWS)
|-
|-
| 24 || 1700/2100 MHz || South West
| 190 || 66 (AWS)
|-
|-
| 191 || 66 (AWS)
|}
|}
==== Outdoor DAS ====
==== Indoor DAS ====
=== Femtocell ===
Like other operators, AT&T sells indoor femtocells to their customers for home use.
It is currently advised to mark these femtocells as '''decommissioned''' on the map and not pin them to any location. It is also advised to '''not''' mark femtocells as a DAS as sector locations may change over time.
They can be identified by their 6-digit eNB starting with 9, with multiple transmit locations across the country on a single eNB.
== NR Mapping Practices ==
AT&T's 5G Standalone network is not available for consumer use yet. Note that it ''is'' still possible to map these networks on some devices via band locking. For best results, try locking n5 or n77 using a '''Verizon'''-based SIM card which may actively avoid locking on to Verizon's own 5G SA network.
== See Also ==
* [[T-Mobile US]]
* [[US Cellular]]
* [[Verizon Wireless]]
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