Local Calling Guide

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NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-905 8 Chicago Zone 10-Beverly IL   5562 METROPCS, INC. 358   2003-11-07   
773-905 9 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2003-11-07   
773-906 A Chicago Zone 11-O'Hare IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-906 2 Chicago Zone 11-O'Hare IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-906 3 Chicago Zone 11-O'Hare IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-05-16   
773-906 4 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2015-07-27   
773-906 5 Chicago Zone 11-O'Hare IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-906 6 Chicago Zone 11-O'Hare IL   624H ONVOY SPECTRUM, LLC 358   2022-01-07   
773-906 7 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2020-02-24   
773-906 8 Chicago Zone 11-O'Hare IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
773-906 9 Chicago Zone 11-O'Hare IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
773-907 A Chicago Zone 02-Edgewater IL CHCGILEDDS0  9329 ILLINOIS BELL TEL CO 358      
773-908 A Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-909 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-910 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-912 A Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-912 0 Chicago Zone 08-Portsmouth IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2020-04-11   
773-912 1 Chicago Zone 08-Portsmouth IL   224C ONVOY, LLC 358   2026-02-20   
773-912 2 Chicago Zone 08-Portsmouth IL   624H ONVOY SPECTRUM, LLC 358   2024-05-31   
773-912 3 Chicago Zone 08-Portsmouth IL   6529 T-MOBILE USA, INC. 358   2007-03-19   
773-912 4 Chicago Zone 08-Portsmouth IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2004-10-01   
773-912 5 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-912 6 Chicago Zone 08-Portsmouth IL   516C AT&T CORP. 358   2006-07-07   
773-912 7 Chicago Zone 08-Portsmouth IL   6529 T-MOBILE USA, INC. 358   2007-03-19   
773-912 8 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-912 9 Chicago Zone 08-Portsmouth IL   224C ONVOY, LLC 358   2026-02-20   
773-913 A Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 0 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 1 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 2 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 3 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 4 Chicago Zone 09-South Chicago IL   624H ONVOY SPECTRUM, LLC 358   2021-11-06   
773-913 5 Chicago Zone 09-South Chicago IL   624H ONVOY SPECTRUM, LLC 358   2021-11-06   
773-913 6 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 7 Chicago Zone 09-South Chicago IL   624H ONVOY SPECTRUM, LLC 358   2021-11-06   
773-913 8 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-913 9 Chicago Zone 09-South Chicago IL   624H ONVOY SPECTRUM, LLC 358   2021-11-06   
773-914 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 0 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 1 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 2 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 3 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 4 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 5 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-914 9 Chicago Zone 01-Wabash IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-915 A Chicago Zone 07-Stewart IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-915 0 Chicago Zone 07-Stewart IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2020-02-26   
773-915 1 Chicago Zone 07-Stewart IL   624H ONVOY SPECTRUM, LLC 358   2025-06-03   
773-915 2 Chicago Zone 07-Stewart IL   624H ONVOY SPECTRUM, LLC 358   2025-06-03   
773-915 3 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-06-08   

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

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