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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Dallas, BC

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
250-573 A KMLPBC03RS2  8086 TELUS 888 808623    
778-469 A KMLPBCKH0MD  497E Shaw Telecom Inc. 888 808623    
778-573 A   078G Navigata Communications Limited 888 808623    

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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