Local Calling Guide
Area code/prefix search
NPA: 312
[Rate centres in NPA 312]
[Dial plan for NPA 312]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
312-312
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-03-22 |
|
312-312
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2018-05-06 |
|
312-312
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-03-22 |
|
312-312
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2018-05-06 |
|
312-312
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-03-22 |
|
312-312
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2018-05-06 |
|
312-312
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-03-22 |
|
312-313
| A |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
312-313
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-313
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-09 |
|
312-314
| A |
Hinsdale |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-314
| 0 |
Hinsdale |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-314
| 9 |
Hinsdale |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-315
| A |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-316
| A |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-317
| A |
Wheeling |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-317
| 9 |
Wheeling |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-318
| A |
La Grange |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
312-318
| 0 |
La Grange |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
312-318
| 1 |
La Grange |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
312-319
| A |
Chicago Zone 01-Calumet |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
312-319
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 3 |
Chicago Zone 01-Calumet |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2017-06-19 |
|
312-319
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 6 |
Chicago Zone 01-Calumet |
IL |
OKBRILOAXEX |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
4604 FIRST COMMUNICATIONS, LLC - IL |
358 |
|
2017-06-20 |
|
312-319
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2017-06-20 |
|
312-319
| 9 |
Chicago Zone 01-Calumet |
IL |
|
515J IP HORIZON LLC |
358 |
|
2017-07-06 |
|
312-320
| A |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-321
| A |
Chicago Zone 01-Illinois Dearborn |
IL |
CHCGILIDDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-322
| A |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-323
| A |
Chicago Zone 01-Wabash |
IL |
CHCGILBWCM2 |
9748 AMERICAN MESSAGING SERVICES, LLC |
358 |
|
|
|
312-324
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
312-324
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2005-01-30 |
|
312-324
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2002-06-05 |
|
312-324
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILFRDS3 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2002-06-05 |
|
312-324
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2005-01-30 |
|
312-324
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-08-14 |
|
312-324
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2002-05-21 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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