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: SNANTX91DS6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-236 4 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-237 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-237 4 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-476 6 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-503 2 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-503 3 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-503 4 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-503 6 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 A San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 0 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 1 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 2 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 3 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 4 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 5 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 6 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 7 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 8 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-631 9 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-801 7 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
210-801 8 San Antonio TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      
956-602 7 Laredo TX 8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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