Local Calling Guide
Area code/prefix search
NPA: 312
[Rate centres in NPA 312]
[Dial plan for NPA 312]
NXX: 631
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
312-631
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILDT8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
|
|
312-631
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
312-631
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
312-631
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILCLDS7 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
312-631
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILCLXOX |
516C AT&T CORP. |
358 |
|
|
|
312-631
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
|
|
312-631
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
|
|
312-631
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
|
|
312-631
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILDT8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
|
|
312-631
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
|
|
312-631
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
|
|
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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