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
773-360 1 Chicago Zone 04-Humboldt IL   318J COMCAST IP PHONE, LLC 358   2007-09-07   
773-360 2 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-360 3 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-03-05   
773-360 4 Chicago Zone 04-Humboldt IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2019-02-09   
773-360 5 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-24   
773-360 6 Chicago Zone 04-Humboldt IL   460K FIRST COMMUNICATIONS, LLC 358   2006-05-12   
773-360 7 Chicago Zone 04-Humboldt IL   318J COMCAST IP PHONE, LLC 358   2006-06-02   
773-360 8 Chicago Zone 04-Humboldt IL   318J COMCAST IP PHONE, LLC 358   2006-03-31   
773-360 9 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2022-08-21   
773-361 A Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-362 A Chicago Zone 08-Portsmouth IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
773-362 0 Chicago Zone 08-Portsmouth IL   829J PAETEC ITEL, LLC 358      
773-362 1 Chicago Zone 08-Portsmouth IL   145J TERRA NOVA TELECOM INC. 358   2021-06-03   
773-362 2 Chicago Zone 08-Portsmouth IL   224C ONVOY, LLC 358   2004-09-15   
773-362 3 Chicago Zone 08-Portsmouth IL   460K FIRST COMMUNICATIONS, LLC 358   2004-11-12   
773-362 4 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-15   
773-362 5 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
773-362 6 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-10   
773-362 7 Chicago Zone 08-Portsmouth IL   829J PAETEC ITEL, LLC 358   2009-10-16   
773-362 8 Chicago Zone 08-Portsmouth IL   829J PAETEC ITEL, LLC 358   2003-12-27   
773-362 9 Chicago Zone 08-Portsmouth IL   829J PAETEC ITEL, LLC 358      
773-363 A Chicago Zone 07-Hyde Park IL CHCGILDODS0  9329 ILLINOIS BELL TEL CO 358      
773-364 A Chicago Zone 09-South Chicago IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
773-364 0 Chicago Zone 09-South Chicago IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-364 1 Chicago Zone 09-South Chicago IL   224C ONVOY, LLC 358   2004-09-15   
773-364 2 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2007-11-23   
773-364 3 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2006-10-08   
773-364 4 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2006-10-08   
773-364 5 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358      
773-364 6 Chicago Zone 09-South Chicago IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-364 7 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2004-12-16   
773-364 8 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2004-12-16   
773-364 9 Chicago Zone 09-South Chicago IL   829J PAETEC ITEL, LLC 358   2004-12-16   
773-365 A Chicago Zone 04-Humboldt IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 0 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 1 Chicago Zone 04-Humboldt IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-03-30   
773-365 2 Chicago Zone 04-Humboldt IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-02-16   
773-365 3 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 4 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 5 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 6 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 7 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 8 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 9 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2018-01-18   
773-366 A Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-366 0 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-21   
773-366 1 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-21   
773-366 2 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-22   
773-366 3 Chicago Zone 10-Beverly IL   318J COMCAST IP PHONE, LLC 358   2011-09-13   
773-366 4 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-22   
773-366 5 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-22   
773-366 6 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-22   
773-366 7 Chicago Zone 10-Beverly IL   460K FIRST COMMUNICATIONS, LLC 358   2004-11-22   
773-366 8 Chicago Zone 10-Beverly IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-11-22   
773-366 9 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2004-11-21   
773-367 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-367 0 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-07-06   
773-367 1 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-07-06   
773-367 2 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-07-06   
773-367 3 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-07-06   
773-367 4 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-04-16   
773-367 5 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-04-16   
773-367 6 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-04-16   
773-367 7 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-04-16   
773-367 8 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358   2009-04-16   
773-367 9 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-08-19   
773-368 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-368 0 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 1 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 2 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 3 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 4 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 5 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 6 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 7 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 8 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-368 9 Chicago Zone 03-Kildare IL   6529 T-MOBILE USA, INC. 358      
773-369 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-370 A Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-370 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 1 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 2 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 3 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 4 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 5 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-370 9 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-371 A Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-371 0 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 1 Chicago Zone 07-Stewart IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-07-29   
773-371 2 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 3 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 4 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 5 Chicago Zone 07-Stewart IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-07-29   
773-371 6 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 7 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 8 Chicago Zone 07-Stewart IL   9329 ILLINOIS BELL TEL CO 358      
773-371 9 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2025-10-16   

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

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