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 |
| 815-306
| 9 |
Lockport |
IL |
CHCGIL24XMD |
495J STRATUS NETWORKS |
358 |
|
2020-09-26 |
|
| 815-307
| A |
McHenry |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-307
| 0 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2010-10-24 |
|
| 815-307
| 1 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2013-05-30 |
|
| 815-307
| 2 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2003-11-24 |
|
| 815-307
| 3 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2003-12-27 |
|
| 815-307
| 4 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2003-11-24 |
|
| 815-307
| 5 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2009-01-25 |
|
| 815-307
| 6 |
McHenry |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2008-09-10 |
|
| 815-307
| 7 |
McHenry |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-307
| 8 |
McHenry |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-307
| 9 |
McHenry |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2011-04-12 |
|
| 815-308
| A |
Woodstock |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-308
| 0 |
Woodstock |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2009-12-26 |
|
| 815-308
| 1 |
Woodstock |
IL |
OKBRILOAXEX |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2003-11-01 |
|
| 815-308
| 2 |
Woodstock |
IL |
EGVGILIFDS0 |
7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
358 |
|
2004-05-29 |
|
| 815-308
| 3 |
Woodstock |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-308
| 4 |
Woodstock |
IL |
CHCGILDTKMD |
5447 ACCESS ONE, INC. - IL |
358 |
|
2006-08-07 |
|
| 815-308
| 5 |
Woodstock |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2005-07-01 |
|
| 815-308
| 6 |
Woodstock |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2005-02-20 |
|
| 815-308
| 7 |
Woodstock |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-308
| 8 |
Woodstock |
IL |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2009-11-06 |
|
| 815-309
| A |
Shannon |
IL |
LNRKILXA3MD |
443F AERO NORTH COMMUNICATIONS, INC. - IL |
364 |
|
|
|
| 815-310
| A |
Utica |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-310
| 0 |
Utica |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2008-12-12 |
|
| 815-310
| 1 |
Utica |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2012-09-30 |
|
| 815-310
| 2 |
Utica |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2011-04-03 |
|
| 815-310
| 3 |
Utica |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2002-07-30 |
|
| 815-310
| 5 |
Utica |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-12-28 |
|
| 815-310
| 6 |
Utica |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-06-11 |
|
| 815-310
| 8 |
Utica |
IL |
CHCGILDTKMD |
5447 ACCESS ONE, INC. - IL |
358 |
|
2006-08-07 |
|
| 815-310
| 9 |
Utica |
IL |
|
145J TERRA NOVA TELECOM INC. |
358 |
|
2023-04-26 |
|
| 815-312
| A |
Rockford |
IL |
RCFRILRTZMD |
224C ONVOY, LLC |
360 |
|
2024-12-29 |
|
| 815-312
| 0 |
Rockford |
IL |
RCFRILRTZMD |
224C ONVOY, LLC |
360 |
|
2009-01-29 |
|
| 815-312
| 1 |
Rockford |
IL |
RCFRILRTXGY |
6265 UNITED STATES CELLULAR - IL |
360 |
|
2026-01-21 |
|
| 815-312
| 2 |
Rockford |
IL |
RCFRILRTXGY |
6265 UNITED STATES CELLULAR - IL |
360 |
|
2026-01-21 |
|
| 815-312
| 3 |
Rockford |
IL |
RCFRILRTXGY |
6265 UNITED STATES CELLULAR - IL |
360 |
|
2026-01-21 |
|
| 815-312
| 4 |
Rockford |
IL |
RCFRILRTXGY |
6265 UNITED STATES CELLULAR - IL |
360 |
|
2026-01-21 |
|
| 815-312
| 5 |
Rockford |
IL |
RCFRILRCJMD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
360 |
|
2009-08-29 |
|
| 815-312
| 6 |
Rockford |
IL |
RCFRILRTX5Y |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
360 |
|
2010-02-27 |
|
| 815-312
| 7 |
Rockford |
IL |
RCFRILRTX5Y |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
360 |
|
2010-02-27 |
|
| 815-312
| 8 |
Rockford |
IL |
RCFRILRTX5Y |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
360 |
|
2010-05-28 |
|
| 815-312
| 9 |
Rockford |
IL |
RCFRILRTXGY |
6265 UNITED STATES CELLULAR - IL |
360 |
|
2026-01-21 |
|
| 815-313
| A |
Ottawa |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 815-313
| 0 |
Ottawa |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2010-08-21 |
|
| 815-313
| 1 |
Ottawa |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-03-04 |
|
| 815-313
| 2 |
Ottawa |
IL |
EGVGILIFDS0 |
7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
358 |
|
2004-05-29 |
|
| 815-313
| 3 |
Ottawa |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2005-02-20 |
|
| 815-313
| 4 |
Ottawa |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2002-09-04 |
|
| 815-313
| 5 |
Ottawa |
IL |
JOLTILJOPMD |
593K MCC TELEPHONY LLC |
358 |
|
2005-07-15 |
|
<< 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 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 >>
Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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