Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: SNANTX91DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-221 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-249 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-268 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-292 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-295 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-312 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-466 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-477 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-539 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-546 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-572 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-581 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-582 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-671 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-808 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-855 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-916 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-925 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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