Local Calling Guide
Area code/prefix search
NPA: 331
[Rate centres in NPA 331]
[Dial plan for NPA 331]
NXX: 200
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 331-200
| A |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-200
| 0 |
Bartlett |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-25 |
|
| 331-200
| 1 |
Bartlett |
IL |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-12-15 |
|
| 331-200
| 2 |
Bartlett |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2011-12-24 |
|
| 331-200
| 3 |
Bartlett |
IL |
|
224C ONVOY, LLC |
358 |
|
2012-12-27 |
|
| 331-200
| 4 |
Bartlett |
IL |
|
224C ONVOY, LLC |
358 |
|
2012-05-25 |
|
| 331-200
| 5 |
Bartlett |
IL |
|
224C ONVOY, LLC |
358 |
|
2013-08-23 |
|
| 331-200
| 6 |
Bartlett |
IL |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
2013-06-26 |
|
| 331-200
| 7 |
Bartlett |
IL |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2013-04-27 |
|
| 331-200
| 8 |
Bartlett |
IL |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2013-04-27 |
|
| 331-200
| 9 |
Bartlett |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-25 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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