Local Calling Guide
Area code/prefix search
NPA: 815
[Rate centres in NPA 815]
[Dial plan for NPA 815]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 815-375
| 0 |
De Kalb |
IL |
DKLBILRS3MD |
6265 UNITED STATES CELLULAR - IL |
364 |
|
|
|
| 815-375
| 1 |
De Kalb |
IL |
DKLBILRS3MD |
6265 UNITED STATES CELLULAR - IL |
364 |
|
|
|
| 815-375
| 2 |
De Kalb |
IL |
DKLBILRS3MD |
6265 UNITED STATES CELLULAR - IL |
364 |
|
|
|
| 815-375
| 3 |
De Kalb |
IL |
DKLBILRS3MD |
6265 UNITED STATES CELLULAR - IL |
364 |
|
|
|
| 815-375
| 4 |
De Kalb |
IL |
DKLBILRSDMD |
5562 METROPCS, INC. |
364 |
|
2010-05-19 |
|
| 815-375
| 5 |
De Kalb |
IL |
DKLBILXAX8X |
318J COMCAST IP PHONE, LLC |
364 |
|
2016-08-22 |
|
| 815-375
| 6 |
De Kalb |
IL |
DKLBILXAXEX |
624H ONVOY SPECTRUM, LLC |
364 |
|
2022-01-10 |
|
| 815-375
| 7 |
De Kalb |
IL |
DKLBILXAXEX |
624H ONVOY SPECTRUM, LLC |
364 |
|
2022-01-10 |
|
| 815-375
| 8 |
De Kalb |
IL |
DKLBILXAXBX |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
364 |
|
2017-10-10 |
|
| 815-375
| 9 |
De Kalb |
IL |
DKLBILRS3MD |
6265 UNITED STATES CELLULAR - IL |
364 |
|
|
|
| 815-376
| A |
Ohio |
IL |
OHIOILXARS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-376
| 1 |
Ohio |
IL |
PEORILPJX8Z |
073H TELNYX LLC |
368 |
|
2020-07-18 |
|
| 815-376
| 2 |
Ohio |
IL |
OHIOILXARS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-376
| 3 |
Ohio |
IL |
PEORILPJX1Z |
508J CENTURYLINK COMMUNICATIONS, LLC |
368 |
|
2016-08-04 |
|
| 815-376
| 4 |
Ohio |
IL |
OHIOILXARS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-376
| 5 |
Ohio |
IL |
OHIOILXARS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-376
| 6 |
Ohio |
IL |
|
145J TERRA NOVA TELECOM INC. |
368 |
|
2025-06-12 |
|
| 815-376
| 7 |
Ohio |
IL |
OHIOILXARS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-376
| 8 |
Ohio |
IL |
PEORILPJDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
368 |
|
2015-11-05 |
|
| 815-376
| 9 |
Ohio |
IL |
PEORILPJXRZ |
495J STRATUS NETWORKS |
368 |
|
2020-08-02 |
|
| 815-377
| A |
Crescent City |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-378
| A |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 0 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 1 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 2 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 3 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 4 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 5 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 6 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 7 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 8 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-378
| 9 |
Rockford |
IL |
RCFRILRCMMD |
6529 T-MOBILE USA, INC. |
360 |
|
|
|
| 815-379
| A |
Walnut |
IL |
WLNTILXADS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-379
| 1 |
Walnut |
IL |
PEORILPJX8Z |
073H TELNYX LLC |
368 |
|
2020-07-20 |
|
| 815-379
| 2 |
Walnut |
IL |
WLNTILXADS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-379
| 3 |
Walnut |
IL |
KEWNILXDYMD |
846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL |
368 |
|
2010-04-15 |
|
| 815-379
| 4 |
Walnut |
IL |
PRTNILXAX0X |
224C ONVOY, LLC |
368 |
|
2024-12-30 |
|
| 815-379
| 5 |
Walnut |
IL |
PRTNILXA8MD |
624H ONVOY SPECTRUM, LLC |
368 |
|
2024-12-02 |
|
| 815-379
| 6 |
Walnut |
IL |
PEORILPJXRZ |
495J STRATUS NETWORKS |
368 |
|
2020-08-03 |
|
| 815-379
| 7 |
Walnut |
IL |
PEORILPJX1Z |
508J CENTURYLINK COMMUNICATIONS, LLC |
368 |
|
2016-08-06 |
|
| 815-379
| 8 |
Walnut |
IL |
PEORILPJDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
368 |
|
2015-11-05 |
|
| 815-379
| 9 |
Walnut |
IL |
WLNTILXADS0 |
1015 FRONTIER NORTH, INC. - IL |
368 |
|
|
|
| 815-380
| A |
Sterling |
IL |
DKLBILRS0MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
364 |
|
|
|
| 815-380
| 0 |
Sterling |
IL |
|
6265 UNITED STATES CELLULAR - IL |
364 |
|
2025-01-23 |
|
| 815-380
| 1 |
Sterling |
IL |
|
6265 UNITED STATES CELLULAR - IL |
364 |
|
2025-01-23 |
|
| 815-380
| 2 |
Sterling |
IL |
DKLBILRS0MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
364 |
|
|
|
| 815-380
| 5 |
Sterling |
IL |
DKLBILRS0MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
364 |
|
|
|
| 815-380
| 6 |
Sterling |
IL |
DKLBILRS0MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
364 |
|
|
|
| 815-380
| 9 |
Sterling |
IL |
DKLBILRS0MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
364 |
|
|
|
| 815-381
| A |
Rockford |
IL |
RCFRILREDS0 |
9329 ILLINOIS BELL TEL CO |
360 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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