Local Calling Guide
Area code/prefix search
Chicago Zone 01-Franklin, IL
<< 1 2 3 4 5 6 7 8 9 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 312-857
| 9 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| A |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 0 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 1 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 2 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 3 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 4 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 5 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 6 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-03-04 |
|
| 312-899
| 7 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 8 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-899
| 9 |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-904
| A |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| A |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 0 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 1 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 2 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 3 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-02-24 |
|
| 312-905
| 4 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-02-24 |
|
| 312-905
| 5 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-02-24 |
|
| 312-905
| 6 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 7 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 8 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-905
| 9 |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-917
| A |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-920
| A |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-931
| A |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-931
| 0 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2011-01-05 |
|
| 312-931
| 1 |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-931
| 2 |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-931
| 3 |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-01-07 |
|
| 312-931
| 4 |
CHCGILWBXSZ |
478J NUSO, LLC |
358 |
|
2024-07-10 |
|
| 312-931
| 5 |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-20 |
|
| 312-931
| 6 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-931
| 7 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2011-01-05 |
|
| 312-931
| 8 |
CHCGILWUIMD |
197D VONAGE AMERICA LLC |
358 |
|
2024-03-25 |
|
| 312-931
| 9 |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-936
| A |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| A |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 0 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 1 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 2 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 3 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 4 |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-01-07 |
|
| 312-960
| 5 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 6 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 7 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 8 |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-960
| 9 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2019-02-24 |
|
| 312-977
| A |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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