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 |
| 312-837
| 7 |
Chicago Zone 01-Calumet |
IL |
|
5562 METRO PCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 8 |
Chicago Zone 01-Calumet |
IL |
|
5562 METRO PCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 9 |
Chicago Zone 01-Calumet |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-11-23 |
|
| 312-838
| A |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-838
| 0 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 1 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 2 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 3 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 4 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 5 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 6 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 7 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 8 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 9 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-839
| A |
Chicago Zone 01-Wabash |
IL |
CHCGILBWCM2 |
9748 AMERICAN MESSAGING SERVICES, LLC |
358 |
|
|
|
| 312-840
| A |
Chicago Zone 01-Illinois Dearborn |
IL |
CHCGILIDDS0 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-841
| A |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 0 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 1 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 2 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 3 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 4 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2011-01-05 |
|
| 312-841
| 5 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2011-05-07 |
|
| 312-841
| 6 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 7 |
Chicago Zone 01-Wabash |
IL |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-03-04 |
|
| 312-841
| 8 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-841
| 9 |
Chicago Zone 01-Wabash |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-842
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILCADS1 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-843
| A |
Chicago Zone 01-Calumet |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
| 312-843
| 0 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 1 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 2 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 3 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 4 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 5 |
Chicago Zone 01-Calumet |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2014-04-26 |
|
| 312-843
| 6 |
Chicago Zone 01-Calumet |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2014-04-26 |
|
| 312-843
| 7 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 8 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 9 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-844
| A |
Hinsdale |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-844
| 0 |
Hinsdale |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-845
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS3 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-846
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS3 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-846
| 0 |
Chicago Zone 01-Franklin |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2011-05-07 |
|
| 312-846
| 1 |
Chicago Zone 01-Franklin |
IL |
|
7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL |
358 |
|
2008-09-26 |
|
| 312-846
| 2 |
Chicago Zone 01-Franklin |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-846
| 3 |
Chicago Zone 01-Franklin |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2001-06-12 |
|
| 312-846
| 4 |
Chicago Zone 01-Franklin |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2001-06-12 |
|
| 312-846
| 5 |
Chicago Zone 01-Franklin |
IL |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2001-06-12 |
|
| 312-846
| 6 |
Chicago Zone 01-Franklin |
IL |
|
7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL |
358 |
|
2001-06-12 |
|
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Last updated: Tue, 31 Dec 2019 02:37:20 UTC
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