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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNLOCAJTFMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-395 A Cambria CA 516C AT&T CORP. 740      
805-395 7 Cambria CA 516C AT&T CORP. 740      
805-438 7 Santa Margarita CA 516C AT&T CORP. 740      
805-510 5 Carrisa Plains CA 516C AT&T CORP. 740      
805-538 5 Atascadero CA 516C AT&T CORP. 740      
805-591 7 Paso Robles CA 516C AT&T CORP. 740      
805-752 A San Luis Obispo CA 516C AT&T CORP. 740      
805-752 1 San Luis Obispo CA 516C AT&T CORP. 740      
805-776 5 Morro Bay CA 516C AT&T CORP. 740      
805-931 8 Nipomo CA 516C AT&T CORP. 740      
805-936 5 Pismo Beach CA 516C AT&T CORP. 740      
805-994 7 Arroyo Grande CA 516C AT&T CORP. 740      
805-995 7 Cayucos CA 516C AT&T CORP. 740      

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

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