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: MCALTXHBDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-213 A McAllen TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-214 A Brownsville TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-216 A Harlingen TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-259 A Edinburg TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-260 A Mercedes TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-567 A Edcouch TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-657 A McAllen TX 4866 SMARTCOM TELEPHONE, LLC 568      
956-681 A McAllen TX 4866 SMARTCOM TELEPHONE, LLC 568      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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