Local Calling Guide

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

NXX: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-204 A Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   
773-204 0 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2025-09-07   
773-204 1 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-09-04   
773-204 2 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-09-04   
773-204 3 Chicago Zone 07-Stewart IL   321J HD CARRIER LLC 358   2025-10-10   
773-204 4 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-08-21   
773-204 5 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   
773-204 6 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   
773-204 7 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   
773-204 8 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   
773-204 9 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-06-05   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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