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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
815-635 1 Chatsworth IL   1015 FRONTIER NORTH, INC. - IL 366      
815-635 3 Chatsworth IL   1015 FRONTIER NORTH, INC. - IL 366      
815-635 4 Chatsworth IL   1015 FRONTIER NORTH, INC. - IL 366      
815-635 5 Chatsworth IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366   2010-03-15   
815-635 6 Chatsworth IL   224C ONVOY, LLC 366   2019-01-17   
815-635 7 Chatsworth IL   508J CENTURYLINK COMMUNICATIONS, LLC 366   2014-08-12   
815-635 8 Chatsworth IL   224C ONVOY, LLC 366   2019-07-15   
815-635 9 Chatsworth IL   224C ONVOY, LLC 366   2019-07-15   
815-636 A Rockford IL LVPKILRNDS0  9329 ILLINOIS BELL TEL CO 360      
815-637 A Rockford IL LVPKILRNDS0  9329 ILLINOIS BELL TEL CO 360      
815-638 A La Moille IL LAMLILXARS0  1015 FRONTIER NORTH, INC. - IL 368      
815-638 1 La Moille IL   1015 FRONTIER NORTH, INC. - IL 368      
815-638 2 La Moille IL   1015 FRONTIER NORTH, INC. - IL 368      
815-638 3 La Moille IL   1015 FRONTIER NORTH, INC. - IL 368      
815-638 7 La Moille IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2018-10-29   
815-638 8 La Moille IL   318J COMCAST IP PHONE, LLC 368   2007-09-23   
815-638 9 La Moille IL   145J TERRA NOVA TELECOM INC. 368   2025-06-06   
815-639 A Rockford IL LVPKILRNDS0  9329 ILLINOIS BELL TEL CO 360      
815-640 A Ottawa IL LSLEILAADS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-640 0 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2021-10-30   
815-640 1 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-04-29   
815-640 2 Ottawa IL   224C ONVOY, LLC 358   2023-08-12   
815-640 3 Ottawa IL   224C ONVOY, LLC 358   2023-08-12   
815-640 4 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-01-24   
815-640 5 Ottawa IL   224C ONVOY, LLC 358   2023-08-12   
815-640 6 Ottawa IL   224C ONVOY, LLC 358   2023-08-12   
815-640 7 Ottawa IL   224C ONVOY, LLC 358   2023-08-12   
815-640 8 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2019-10-21   
815-640 9 Ottawa IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-641 A Joliet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
815-641 0 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-10-13   
815-641 1 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-05-18   
815-641 2 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-05-18   
815-641 3 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-05-18   
815-641 4 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-07-09   
815-641 5 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-12-08   
815-641 6 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-06-08   
815-641 7 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-03-13   
815-641 8 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-04-18   
815-641 9 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-08-12   
815-642 A Minooka IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 0 Minooka IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 1 Minooka IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 2 Minooka IL   224C ONVOY, LLC 358   2023-08-12   
815-642 3 Minooka IL   624H ONVOY SPECTRUM, LLC 358   2024-04-28   
815-642 4 Minooka IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 5 Minooka IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2005-08-26   
815-642 6 Minooka IL   460K FIRST COMMUNICATIONS, LLC 358   2004-11-28   
815-642 7 Minooka IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2004-09-24   
815-642 8 Minooka IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 9 Minooka IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-643 A Dover IL DOVRILXARS1  1015 FRONTIER NORTH, INC. - IL 368      
815-643 1 Dover IL   1015 FRONTIER NORTH, INC. - IL 368      
815-643 2 Dover IL   1015 FRONTIER NORTH, INC. - IL 368      
815-643 3 Dover IL   495J STRATUS NETWORKS 368   2020-08-02   
815-643 4 Dover IL   624H ONVOY SPECTRUM, LLC 368   2024-12-02   
815-643 6 Dover IL   224C ONVOY, LLC 368   2024-12-30   
815-643 7 Dover IL   508J CENTURYLINK COMMUNICATIONS, LLC 368   2016-08-03   
815-643 8 Dover IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-11-05   
815-643 9 Dover IL   145J TERRA NOVA TELECOM INC. 368   2025-06-06   
815-644 A Crescent City IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-644 0 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2004-03-25   
815-644 1 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2006-02-22   
815-644 2 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2006-08-01   
815-644 3 Crescent City IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-644 4 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2006-10-25   
815-644 5 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2006-10-25   
815-644 6 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2007-03-12   
815-644 7 Crescent City IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-644 8 Crescent City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2007-03-12   
815-645 A Stillman Valley IL STVYILXARS0  1015 FRONTIER NORTH, INC. - IL 360      
815-645 0 Stillman Valley IL   224C ONVOY, LLC 360   2019-09-06   
815-645 1 Stillman Valley IL   1015 FRONTIER NORTH, INC. - IL 360      
815-645 2 Stillman Valley IL   1015 FRONTIER NORTH, INC. - IL 360      
815-645 3 Stillman Valley IL   318J COMCAST IP PHONE, LLC 360   2006-08-09   
815-645 5 Stillman Valley IL   224C ONVOY, LLC 360   2018-07-30   
815-645 6 Stillman Valley IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 360   2010-06-13   
815-645 7 Stillman Valley IL   318J COMCAST IP PHONE, LLC 360   2007-09-23   
815-645 8 Stillman Valley IL   1015 FRONTIER NORTH, INC. - IL 360      
815-645 9 Stillman Valley IL   224C ONVOY, LLC 360   2019-09-06   
815-646 A Tiskilwa IL TSKLILXARS0  1015 FRONTIER NORTH, INC. - IL 368      
815-646 1 Tiskilwa IL   1015 FRONTIER NORTH, INC. - IL 368      
815-646 2 Tiskilwa IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-11-05   
815-646 3 Tiskilwa IL   318J COMCAST IP PHONE, LLC 368   2006-08-09   
815-646 4 Tiskilwa IL   1015 FRONTIER NORTH, INC. - IL 368      
815-646 5 Tiskilwa IL   624H ONVOY SPECTRUM, LLC 368   2024-12-02   
815-646 6 Tiskilwa IL   224C ONVOY, LLC 368   2024-12-30   
815-646 7 Tiskilwa IL   508J CENTURYLINK COMMUNICATIONS, LLC 368   2016-08-05   
815-646 8 Tiskilwa IL   318J COMCAST IP PHONE, LLC 368   2007-09-23   
815-646 9 Tiskilwa IL   495J STRATUS NETWORKS 368   2020-08-02   
815-647 A Cullom IL BLTNILXDXPX  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366      
815-647 0 Cullom IL   224C ONVOY, LLC 366   2019-07-15   
815-647 1 Cullom IL   224C ONVOY, LLC 366   2019-07-15   
815-647 2 Cullom IL   495J STRATUS NETWORKS 366   2021-03-31   
815-647 4 Cullom IL   624H ONVOY SPECTRUM, LLC 366   2023-06-02   
815-647 6 Cullom IL   224C ONVOY, LLC 366   2019-01-17   
815-647 7 Cullom IL   508J CENTURYLINK COMMUNICATIONS, LLC 366   2014-08-12   
815-647 8 Cullom IL   073H TELNYX LLC 366   2020-07-06   
815-647 9 Cullom IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366   2010-03-06   
815-648 A Hebron IL HBRNILXARS0  1015 FRONTIER NORTH, INC. - IL 358      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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