Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 210 [Rate centres in NPA 210] [Dial plan for NPA 210]

NXX: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-457 A San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 0 San Antonio TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2025-06-13   
210-457 1 San Antonio TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2025-08-14   
210-457 2 San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 3 San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 4 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2025-06-20   
210-457 5 San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 6 San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 7 San Antonio TX SNANTX91XMY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 566      
210-457 8 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2025-06-20   
210-457 9 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2016-04-17   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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