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
773-577 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2004-02-02   
773-577 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-04-02   
773-577 8 Chicago Zone 03-Kildare IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-04-05   
773-577 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-04-02   
773-578 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-578 0 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-578 1 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-578 2 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-578 4 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-578 7 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-579 A Chicago Zone 06-Lafayette IL CHCGILLADS0  9329 ILLINOIS BELL TEL CO 358      
773-580 A Chicago Zone 03-Kildare IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-581 A Chicago Zone 08-Portsmouth IL CHCGILPMDS0  9329 ILLINOIS BELL TEL CO 358      
773-582 A Chicago Zone 08-Portsmouth IL CHCGILPMDS0  9329 ILLINOIS BELL TEL CO 358      
773-583 A Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-584 A Chicago Zone 06-Kedzie IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
773-584 0 Chicago Zone 06-Kedzie IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
773-584 1 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-07-17   
773-584 2 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-07-17   
773-584 3 Chicago Zone 06-Kedzie IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-09-17   
773-584 4 Chicago Zone 06-Kedzie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-11-12   
773-584 5 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2009-06-01   
773-584 6 Chicago Zone 06-Kedzie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2003-07-31   
773-584 7 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2009-06-01   
773-584 8 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-03-24   
773-584 9 Chicago Zone 06-Kedzie IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
773-585 A Chicago Zone 08-Portsmouth IL CHCGILPMDS0  9329 ILLINOIS BELL TEL CO 358      
773-586 A Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-587 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-587 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-02-26   
773-587 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-02-26   
773-587 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-02-26   
773-587 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-02-26   
773-587 4 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-02-26   
773-587 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-02-22   
773-587 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-02-22   
773-587 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-02-22   
773-587 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-02-22   
773-587 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-02-22   
773-588 A Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 A River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 0 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 1 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 2 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 3 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 4 River Grove IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-589 5 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 6 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 7 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      
773-589 8 River Grove IL RVGVILRGDS0  9329 ILLINOIS BELL TEL CO 358      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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