Local Calling Guide
Area code/prefix search
Chicago Zone 01-Calumet, IL
<< 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 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 312-783
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-784
| A |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
|
|
| 312-784
| 0 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 1 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 2 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 3 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 4 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 5 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 6 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 7 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 8 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-784
| 9 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2007-09-02 |
|
| 312-785
| A |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-785
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-785
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2014-10-03 |
|
| 312-791
| A |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 0 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 1 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 2 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 3 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 4 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 5 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 6 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 7 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 8 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-791
| 9 |
|
145J TERRA NOVA TELECOM INC. |
358 |
|
2025-04-09 |
|
| 312-792
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-792
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 2 |
|
197D VONAGE AMERICA LLC |
358 |
|
2025-10-21 |
|
| 312-792
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-01-11 |
|
| 312-792
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
| 312-792
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2015-01-13 |
|
<< 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 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
Sponsored by: ISP Telecom
Like this site? We accept donations via PayPal.