Local Calling Guide
Area code/prefix search
NPA: 312
[Rate centres in NPA 312]
[Dial plan for NPA 312]
NXX: 449
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
312-449
| A |
Chicago Zone 01-Calumet |
IL |
|
700J WAVENATION, LLC |
358 |
|
2025-09-14 |
|
312-449
| 0 |
Chicago Zone 01-Calumet |
IL |
|
700J WAVENATION, LLC |
358 |
|
2025-09-14 |
|
312-449
| 1 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 2 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 3 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 4 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 5 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 6 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 7 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 8 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
312-449
| 9 |
Chicago Zone 01-Calumet |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
Last updated: Mon, 15 Sep 2025 02:24:40 UTC
Sponsored by: Execulink Telecom
Like this site? We accept donations via PayPal.