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
773-423 A Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 0 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 1 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 2 Chicago Zone 02-Edgewater IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2004-03-29   
773-423 3 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 4 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 5 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 6 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-05-07   
773-423 7 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-05-07   
773-423 8 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 9 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-424 A Summit IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-424 0 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 1 Summit IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-424 2 Summit IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-424 3 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 4 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 5 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 6 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 7 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 8 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 9 Summit IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2008-05-31   
773-425 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 4 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-425 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 4 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-426 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-427 A Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-427 0 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-427 1 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-427 2 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-427 3 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-427 4 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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