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: FRSNCA01X3Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-220 A Fresno CA 6967 33 WIRELESS INC. 728      
559-369 A Fresno CA 252F WIDE VOICE, LLC - CA 728   2024-01-29   
559-369 1 Fresno CA 252F WIDE VOICE, LLC - CA 728   2012-09-09   
559-670 A Hanford CA 252F WIDE VOICE, LLC - CA 728      
559-670 1 Hanford CA 252F WIDE VOICE, LLC - CA 728   2011-07-07   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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