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 |
| 312-788
| 2 |
Chicago Zone 01-Wabash |
IL |
CHCGIL24DS3 |
4604 FIRST COMMUNICATIONS, LLC - IL |
358 |
|
2014-04-16 |
|
| 312-788
| 3 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-788
| 4 |
Chicago Zone 01-Wabash |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2009-01-27 |
|
| 312-788
| 5 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-788
| 6 |
Chicago Zone 01-Wabash |
IL |
CHCGILDT8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
2016-03-28 |
|
| 312-788
| 7 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-03-04 |
|
| 312-788
| 8 |
Chicago Zone 01-Wabash |
IL |
OKBRILDODS0 |
259E YMAX COMMUNICATIONS CORP. - IL |
358 |
|
2008-08-29 |
|
| 312-788
| 9 |
Chicago Zone 01-Wabash |
IL |
OKBRILDODS0 |
259E YMAX COMMUNICATIONS CORP. - IL |
358 |
|
2008-08-29 |
|
| 312-789
| A |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 0 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 1 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 2 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 3 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 4 |
Chicago Zone 01-Wabash |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2011-04-13 |
|
| 312-789
| 5 |
Chicago Zone 01-Wabash |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2008-05-30 |
|
| 312-789
| 6 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 7 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 8 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-789
| 9 |
Chicago Zone 01-Wabash |
IL |
CHCGILWBDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-790
| A |
Chicago Zone 01-Superior |
IL |
CHCGILSUDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-792
| A |
Chicago Zone 01-Calumet |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-792
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 1 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 2 |
Chicago Zone 01-Calumet |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-01-11 |
|
| 312-792
| 3 |
Chicago Zone 01-Calumet |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-01-11 |
|
| 312-792
| 4 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 5 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 6 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 7 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 8 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 9 |
Chicago Zone 01-Calumet |
IL |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-793
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-794
| A |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 0 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 1 |
Chicago Zone 01-Canal |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2005-01-18 |
|
| 312-794
| 2 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 3 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 4 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 5 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-794
| 6 |
Chicago Zone 01-Canal |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2005-01-18 |
|
| 312-794
| 7 |
Chicago Zone 01-Canal |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2005-01-18 |
|
| 312-794
| 8 |
Chicago Zone 01-Canal |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2005-01-18 |
|
| 312-794
| 9 |
Chicago Zone 01-Canal |
IL |
CHCGILACGT0 |
8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL |
358 |
|
|
|
| 312-795
| A |
Chicago Zone 01-Franklin |
IL |
CHCGILFRDS4 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-796
| A |
Chicago Zone 01-Calumet |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
|
|
| 312-796
| 0 |
Chicago Zone 01-Calumet |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-09-16 |
|
| 312-796
| 1 |
Chicago Zone 01-Calumet |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-10-11 |
|
| 312-796
| 2 |
Chicago Zone 01-Calumet |
IL |
CHCGILCPDS9 |
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2016-09-17 |
|
| 312-796
| 3 |
Chicago Zone 01-Calumet |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2016-09-17 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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