Local Calling Guide
Area code/prefix search
Fairmount, IL
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 217-574
| A |
CHMPILCPX0Y |
073H TELNYX LLC |
370 |
|
|
|
| 217-574
| 0 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
370 |
|
2015-01-10 |
|
| 217-574
| 1 |
|
073H TELNYX LLC |
370 |
|
2018-06-28 |
|
| 217-574
| 2 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
370 |
|
2021-07-11 |
|
| 217-574
| 4 |
|
224C ONVOY, LLC |
370 |
|
2013-11-29 |
|
| 217-574
| 5 |
|
224C ONVOY, LLC |
370 |
|
2018-11-02 |
|
| 217-574
| 6 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
370 |
|
2016-06-11 |
|
| 217-574
| 7 |
|
516C AT&T CORP. |
370 |
|
2008-12-21 |
|
| 217-574
| 8 |
|
224C ONVOY, LLC |
370 |
|
2021-08-09 |
|
| 217-574
| 9 |
|
515J IP HORIZON LLC |
370 |
|
2022-04-09 |
|
| 217-733
| A |
FAMTILFARS0 |
9329 ILLINOIS BELL TEL CO |
370 |
|
|
|
| 217-733
| 0 |
|
224C ONVOY, LLC |
370 |
|
2019-07-05 |
|
| 217-733
| 1 |
|
224C ONVOY, LLC |
370 |
|
2019-07-05 |
|
| 217-733
| 2 |
|
9329 ILLINOIS BELL TEL CO |
370 |
|
|
|
| 217-733
| 3 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
370 |
|
2024-12-19 |
|
| 217-733
| 5 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
370 |
|
2004-07-16 |
|
| 217-733
| 6 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
370 |
|
2005-12-29 |
|
| 217-733
| 7 |
|
318J COMCAST IP PHONE, LLC |
370 |
|
2006-08-30 |
|
| 217-733
| 8 |
|
318J COMCAST IP PHONE, LLC |
370 |
|
2007-09-23 |
|
| 217-733
| 9 |
|
624H ONVOY SPECTRUM, LLC |
370 |
|
2024-05-16 |
|
| 447-321
| A |
|
7421 AT&T - LOCAL |
370 |
|
2025-09-24 |
|
| 447-321
| 9 |
|
7421 AT&T - LOCAL |
370 |
|
2025-09-24 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
Sponsored by: Execulink Telecom
Like this site? We accept donations via PayPal.