Local Calling Guide

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

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-437 A Chicago Zone 09-South Chicago IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-437 0 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-437 1 Chicago Zone 09-South Chicago IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-437 2 Chicago Zone 09-South Chicago IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-437 3 Chicago Zone 09-South Chicago IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-437 4 Chicago Zone 09-South Chicago IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-437 5 Chicago Zone 09-South Chicago IL CHCGILCLXOX  516C AT&T CORP. 358      
773-437 6 Chicago Zone 09-South Chicago IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-437 7 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-437 8 Chicago Zone 09-South Chicago IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-437 9 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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