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: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-543 A San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 0 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 1 San Antonio TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2025-02-15   
210-543 2 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 3 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 4 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 5 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 6 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 7 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 8 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      
210-543 9 San Antonio TX SNANTXCUDS0  9533 SOUTHWESTERN BELL 566      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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