Local Calling Guide

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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
815-301 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   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 ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 1 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 2 Joliet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-09-13   
815-302 3 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 4 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 5 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 6 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 7 Joliet IL ELGNILOTGT5  5562 METROPCS, INC. 358      
815-302 8 Joliet IL ELGNILOTGT5  5562 METROPCS, 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   
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 BFGVILASG00  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 OKBRILOAHMD  7421 AT&T - LOCAL 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   
815-308 9 Woodstock IL   145J TERRA NOVA TELECOM INC. 358   2022-08-03   
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   224C ONVOY, LLC 360   2009-01-29   
815-312 1 Rockford IL   6265 UNITED STATES CELLULAR - IL 360   2026-01-21   
815-312 2 Rockford IL   6265 UNITED STATES CELLULAR - IL 360   2026-01-21   
815-312 3 Rockford IL   6265 UNITED STATES CELLULAR - IL 360   2026-01-21   
815-312 4 Rockford IL   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   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   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   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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