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: 928

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-928 A San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 0 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 1 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 2 San Antonio TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2023-01-15   
210-928 3 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 4 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 5 San Antonio TX SNANTXCA80Z  624H ONVOY SPECTRUM, LLC 566   2024-01-14   
210-928 6 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 7 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-03-07   
210-928 8 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      
210-928 9 San Antonio TX SNANTXWADS0  9533 SOUTHWESTERN BELL 566      

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

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