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 |
| 815-301
| 1 |
Crystal Lake |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-301
| 2 |
Crystal Lake |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-301
| 3 |
Crystal Lake |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 815-301
| 4 |
Crystal Lake |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2004-09-20 |
|
| 815-301
| 5 |
Crystal Lake |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-301
| 6 |
Crystal Lake |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-301
| 7 |
Crystal Lake |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2004-10-18 |
|
| 815-301
| 8 |
Crystal Lake |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 815-301
| 9 |
Crystal Lake |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-302
| A |
Joliet |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
|
|
| 815-302
| 0 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 1 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 2 |
Joliet |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2004-09-13 |
|
| 815-302
| 3 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 4 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 5 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 6 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 7 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 8 |
Joliet |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-302
| 9 |
Joliet |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 815-303
| A |
Princeton |
IL |
PEORILPJXUZ |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
368 |
|
|
|
| 815-304
| A |
Kankakee |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-304
| 0 |
Kankakee |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 815-304
| 1 |
Kankakee |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 815-304
| 2 |
Kankakee |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-304
| 3 |
Kankakee |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2006-01-28 |
|
| 815-304
| 4 |
Kankakee |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2006-05-29 |
|
| 815-304
| 5 |
Kankakee |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2005-08-01 |
|
| 815-304
| 7 |
Kankakee |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 815-304
| 8 |
Kankakee |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 815-304
| 9 |
Kankakee |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2009-10-04 |
|
| 815-305
| A |
Gardner |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-305
| 1 |
Gardner |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2010-02-14 |
|
| 815-305
| 2 |
Gardner |
IL |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2009-11-10 |
|
| 815-305
| 3 |
Gardner |
IL |
JOLTILJOPMD |
593K MCC TELEPHONY LLC |
358 |
|
2010-03-15 |
|
| 815-305
| 5 |
Gardner |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2010-05-15 |
|
| 815-305
| 6 |
Gardner |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-09-25 |
|
| 815-305
| 7 |
Gardner |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-305
| 8 |
Gardner |
IL |
CHCGILDTKMD |
5447 ACCESS ONE, INC. - IL |
358 |
|
2006-08-06 |
|
| 815-305
| 9 |
Gardner |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2022-01-02 |
|
| 815-306
| A |
Lockport |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-306
| 0 |
Lockport |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2005-04-28 |
|
| 815-306
| 1 |
Lockport |
IL |
CHCGILDTKMD |
5447 ACCESS ONE, INC. - IL |
358 |
|
2006-07-21 |
|
| 815-306
| 2 |
Lockport |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2004-07-15 |
|
| 815-306
| 3 |
Lockport |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2004-09-15 |
|
| 815-306
| 4 |
Lockport |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2003-08-18 |
|
| 815-306
| 5 |
Lockport |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2022-09-08 |
|
| 815-306
| 6 |
Lockport |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2005-02-20 |
|
| 815-306
| 7 |
Lockport |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-306
| 8 |
Lockport |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-04-26 |
|
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Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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