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: SNGRCAXFPMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
559-524 A Sanger CA 321J HD CARRIER LLC 728      
559-524 9 Sanger CA 321J HD CARRIER LLC 728   2019-11-17   
559-671 1 Exeter CA 321J HD CARRIER LLC 728   2016-06-06   
559-671 2 Exeter CA 321J HD CARRIER LLC 728   2016-06-06   
559-671 3 Exeter CA 321J HD CARRIER LLC 728   2016-06-06   
559-671 5 Exeter CA 321J HD CARRIER LLC 728   2016-06-06   
559-671 8 Exeter CA 321J HD CARRIER LLC 728   2016-08-26   
559-671 9 Exeter CA 321J HD CARRIER LLC 728   2016-08-26   
559-838 2 Exeter CA 321J HD CARRIER LLC 728   2016-08-26   

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

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