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: 442

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-442 A San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 0 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 1 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 2 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 3 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 4 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 5 San Antonio TX SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2022-12-15   
210-442 6 San Antonio TX SNANTXDIDS2  9533 SOUTHWESTERN BELL 566      
210-442 7 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2007-11-12   
210-442 8 San Antonio TX SNANTXCAY9X  793K TWC IP ENABLED SERVICES, LLC 566   2006-04-12   
210-442 9 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2006-01-18   

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

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