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 |
312-216
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2013-01-10 |
|
312-216
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILWUX1X |
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2012-04-16 |
|
312-216
| 9 |
Chicago Zone 01-Calumet |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2012-12-23 |
|
312-217
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILMF2MD |
6664 SPRINT SPECTRUM, L.P. |
358 |
|
|
|
312-217
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-217
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-218
| A |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
312-219
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
312-219
| 0 |
Chicago Zone 01-Calumet |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2013-02-25 |
|
312-219
| 1 |
Chicago Zone 01-Calumet |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2012-12-24 |
|
312-219
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-06-24 |
|
312-219
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-06-24 |
|
312-219
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-06-24 |
|
312-219
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-06-24 |
|
312-219
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILWUX1X |
8760 US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL |
358 |
|
2012-06-21 |
|
312-219
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILCLDS7 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2012-08-01 |
|
312-219
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2012-08-03 |
|
312-219
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2012-08-03 |
|
312-220
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-221
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
312-221
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2011-08-08 |
|
312-221
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-221
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-09 |
|
312-221
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF5MD |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-08 |
|
312-222
| A |
Chicago Zone 01-Illinois Dearborn |
IL |
CHCGILIDDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-223
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-224
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
312-225
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILCADS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-226
| A |
Chicago Zone 01-Monroe |
IL |
CHCGILMODS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-227
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
312-227
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
312-227
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
312-227
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
312-227
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
312-227
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
312-227
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-10-15 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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