Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX: 448

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-448 A Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2025-12-06   
773-448 0 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2025-12-06   
773-448 1 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2026-01-09   
773-448 2 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2026-01-09   
773-448 3 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2026-01-09   
773-448 4 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2026-02-20   
773-448 6 Chicago Zone 07-Stewart IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2025-12-08   
773-448 7 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2026-01-11   
773-448 8 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2026-01-11   
773-448 9 Chicago Zone 07-Stewart IL   224C ONVOY, LLC 358   2026-01-11   

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

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