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]

Region: TX

OCN: 9748 AMERICAN MESSAGING SERVICES, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
210-203 A San Antonio TX SNANTXCA40Z  566      
210-205 A San Antonio TX SNANTXCA40Z  566      
210-217 A San Antonio TX SNANTXCA40Z  566      
210-266 A San Antonio TX SNANTXCA40Z  566      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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