Local Calling Guide

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

NXX: 733

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-733 A Chicago Zone 06-Kedzie IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
773-733 0 Chicago Zone 06-Kedzie IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-10-25   
773-733 1 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-08-27   
773-733 2 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-08-27   
773-733 3 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-08-27   
773-733 4 Chicago Zone 06-Kedzie IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-28   
773-733 5 Chicago Zone 06-Kedzie IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358      
773-733 6 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-09-13   
773-733 7 Chicago Zone 06-Kedzie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-09-09   
773-733 8 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-10-16   
773-733 9 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-10-16   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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