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: SNFCCAMKX1Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
341-999 0 Richmond CA 996H AIRESPRING, INC. 722   2020-05-18   
415-348 9 San Francisco: Central DA CA 996H AIRESPRING, INC. 722   2020-05-18   
510-264 2 Hayward CA 996H AIRESPRING, INC. 722   2020-04-29   
650-709 A Palo Alto CA 996H AIRESPRING, INC. 722      
650-709 0 Palo Alto CA 996H AIRESPRING, INC. 722   2018-06-22   
669-529 8 Sunnyvale CA 996H AIRESPRING, INC. 722   2020-05-18   
707-551 5 Vallejo CA 996H AIRESPRING, INC. 722   2020-05-18   
707-697 0 Santa Rosa CA 996H AIRESPRING, INC. 722   2020-05-30   
831-576 0 Santa Cruz CA 996H AIRESPRING, INC. 722   2020-05-18   
925-223 9 Pleasanton CA 996H AIRESPRING, INC. 722   2020-05-18   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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