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 |
| 312-521
| 0 |
Chicago Zone 01-Lakeshore |
IL |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-03-04 |
|
| 312-521
| 1 |
Chicago Zone 01-Lakeshore |
IL |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2002-11-16 |
|
| 312-521
| 2 |
Chicago Zone 01-Lakeshore |
IL |
|
7721 BROADWING COMMUNICATIONS, LLC - IL |
358 |
|
2002-11-20 |
|
| 312-521
| 3 |
Chicago Zone 01-Lakeshore |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2004-03-01 |
|
| 312-521
| 4 |
Chicago Zone 01-Lakeshore |
IL |
|
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2009-04-08 |
|
| 312-521
| 5 |
Chicago Zone 01-Lakeshore |
IL |
|
5447 ACCESS ONE, INC. - IL |
358 |
|
2009-02-25 |
|
| 312-521
| 6 |
Chicago Zone 01-Lakeshore |
IL |
|
7421 AT&T LOCAL |
358 |
|
|
|
| 312-521
| 7 |
Chicago Zone 01-Lakeshore |
IL |
|
4604 FIRST COMMUNICATIONS LLC - IL |
358 |
|
2003-10-22 |
|
| 312-521
| 8 |
Chicago Zone 01-Lakeshore |
IL |
|
7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. |
358 |
|
2013-08-23 |
|
| 312-521
| 9 |
Chicago Zone 01-Lakeshore |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-02-07 |
|
| 312-522
| A |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-522
| 0 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 1 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 2 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 3 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 4 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 5 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 6 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 7 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 8 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 9 |
Chicago Zone 01-Calumet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-523
| A |
Chicago Zone 01-Wabash |
IL |
BRDVILBOCM1 |
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 0 |
Chicago Zone 01-Wabash |
IL |
|
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2005-06-24 |
|
| 312-523
| 1 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2010-11-05 |
|
| 312-523
| 2 |
Chicago Zone 01-Wabash |
IL |
|
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2005-06-24 |
|
| 312-523
| 3 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 4 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 5 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 6 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 7 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 8 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-523
| 9 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
|
|
| 312-524
| A |
Wheeling |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-524
| 0 |
Wheeling |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-525
| A |
Chicago Zone 01-Wabash |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 0 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2004-03-19 |
|
| 312-525
| 1 |
Chicago Zone 01-Wabash |
IL |
|
6664 SPRINT SPECTRUM L.P. |
358 |
|
2004-03-19 |
|
| 312-525
| 2 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 3 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 4 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 5 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 6 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 7 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 8 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-525
| 9 |
Chicago Zone 01-Wabash |
IL |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-526
| A |
Chicago Zone 01-Canal |
IL |
CHCGILCLDS3 |
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-526
| 0 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-526
| 1 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-526
| 2 |
Chicago Zone 01-Canal |
IL |
|
9329 AMERITECH ILLINOIS |
358 |
|
|
|
| 312-526
| 3 |
Chicago Zone 01-Canal |
IL |
|
7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL |
358 |
|
2008-06-08 |
|
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Last updated: Tue, 31 Dec 2019 02:37:20 UTC
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