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: SNFCCA21XCZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
341-777 A Hayward CA 252F WIDE VOICE, LLC - CA 722      
341-777 7 Hayward CA 252F WIDE VOICE, LLC - CA 722      
341-888 A Fremont-Newark: Main DA CA 252F WIDE VOICE, LLC - CA 722      
341-888 8 Fremont-Newark: Main DA CA 252F WIDE VOICE, LLC - CA 722      
369-777 A Sonoma CA 252F WIDE VOICE, LLC - CA 722      
369-777 7 Sonoma CA 252F WIDE VOICE, LLC - CA 722      
369-888 A Ferndale CA 252F WIDE VOICE, LLC - CA 722      
369-888 8 Ferndale CA 252F WIDE VOICE, LLC - CA 722      
369-999 A Kenwood CA 252F WIDE VOICE, LLC - CA 722      
369-999 9 Kenwood CA 252F WIDE VOICE, LLC - CA 722      
408-897 1 San Antonio CA 252F WIDE VOICE, LLC - CA 722      
408-897 4 San Antonio CA 252F WIDE VOICE, LLC - CA 722      
408-897 6 San Antonio CA 252F WIDE VOICE, LLC - CA 722      
415-416 A San Francisco: Central DA CA 252F WIDE VOICE, LLC - CA 722      
415-416 1 San Francisco: Central DA CA 252F WIDE VOICE, LLC - CA 722      
510-937 9 Crockett CA 252F WIDE VOICE, LLC - CA 722      
628-286 A San Francisco: Montrose-Evergreen DA CA 252F WIDE VOICE, LLC - CA 722      
628-286 1 San Francisco: Montrose-Evergreen DA CA 252F WIDE VOICE, LLC - CA 722      
650-673 0 La Honda CA 252F WIDE VOICE, LLC - CA 722      
650-673 1 La Honda CA 252F WIDE VOICE, LLC - CA 722      
650-795 7 La Honda CA 252F WIDE VOICE, LLC - CA 722      
669-206 3 Sunnyvale CA 252F WIDE VOICE, LLC - CA 722      
707-606 2 Benicia CA 252F WIDE VOICE, LLC - CA 722      
831-322 6 Watsonville CA 252F WIDE VOICE, LLC - CA 722      
925-623 0 Pleasanton CA 252F WIDE VOICE, LLC - CA 722      

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

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