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: SNANTX91DS5

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-955 8 San Antonio TX 4866 SMARTCOM TELEPHONE, LLC 566      
830-254 2 Karnes City-Falls City TX 4866 SMARTCOM TELEPHONE, LLC 566      
830-971 6 Eagle Pass TX 4866 SMARTCOM TELEPHONE, LLC 566      
956-218 A Laredo TX 4866 SMARTCOM TELEPHONE, LLC 566      

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

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