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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 312-668
| 2 |
Chicago Zone 01-Calumet |
IL |
|
425J CSC WIRELESS, LLC |
358 |
|
2019-07-19 |
|
| 312-668
| 3 |
Chicago Zone 01-Calumet |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2019-09-14 |
|
| 312-668
| 4 |
Chicago Zone 01-Calumet |
IL |
|
7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. |
358 |
|
2019-07-20 |
|
| 312-668
| 5 |
Chicago Zone 01-Calumet |
IL |
|
7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. |
358 |
|
2019-07-20 |
|
| 312-668
| 6 |
Chicago Zone 01-Calumet |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-08-18 |
|
| 312-668
| 7 |
Chicago Zone 01-Calumet |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-08-18 |
|
| 312-668
| 8 |
Chicago Zone 01-Calumet |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-08-18 |
|
| 312-668
| 9 |
Chicago Zone 01-Calumet |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-08-18 |
|
| 312-669
| A |
Chicago Zone 01-Canal |
IL |
CHCGILCLDS3 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 0 |
Chicago Zone 01-Canal |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-02-07 |
|
| 312-669
| 1 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 2 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 3 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 4 |
Chicago Zone 01-Canal |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2011-01-05 |
|
| 312-669
| 5 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 6 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 7 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 8 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-669
| 9 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-670
| A |
Chicago Zone 01-Illinois Dearborn |
IL |
CHCGILIDDS2 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-671
| A |
Chicago Zone 01-Calumet |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-672
| A |
Chicago Zone 01-Canal |
IL |
CHCGILCLDS3 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 0 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 1 |
Chicago Zone 01-Canal |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2011-05-26 |
|
| 312-672
| 2 |
Chicago Zone 01-Canal |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2007-10-10 |
|
| 312-672
| 3 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 4 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 5 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 6 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 7 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 8 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-672
| 9 |
Chicago Zone 01-Canal |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2007-10-10 |
|
| 312-673
| A |
Chicago Zone 01-Calumet |
IL |
CHCGIL24DS3 |
4604 FIRST COMMUNICATIONS LLC - IL |
358 |
|
|
|
| 312-674
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILCADS0 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 0 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 1 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 2 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 3 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 4 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 5 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 6 |
Chicago Zone 01-Calumet |
IL |
|
7721 BROADWING COMMUNICATIONS, LLC - IL |
358 |
|
2002-06-24 |
|
| 312-674
| 7 |
Chicago Zone 01-Calumet |
IL |
|
7056 XO ILLINOIS, INC. |
358 |
|
2011-01-05 |
|
| 312-674
| 8 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-674
| 9 |
Chicago Zone 01-Calumet |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-675
| A |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS2 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-675
| 0 |
Chicago Zone 01-Wabash |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-675
| 1 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2011-05-26 |
|
| 312-675
| 2 |
Chicago Zone 01-Wabash |
IL |
|
259E YMAX COMMUNICATIONS CORP. - IL |
358 |
|
2009-08-21 |
|
| 312-675
| 3 |
Chicago Zone 01-Wabash |
IL |
|
7721 BROADWING COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-12 |
|
| 312-675
| 4 |
Chicago Zone 01-Wabash |
IL |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-12 |
|
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Last updated: Tue, 31 Dec 2019 02:37:20 UTC
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