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: SMRVCAXFDS1

Remotes:

Switch Switch name Switch type
GSQTCAXFRS2  GASQUET  1RE 
HICHCAXFRS2  HIOUCHI  1RE 
KLMTCAXFRS1  KLAMATH  1RE 
ORICCAXFRS1  ORICK  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-487 A Smith River CA 2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-487 0 Smith River CA 2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-487 3 Smith River CA 2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-487 5 Smith River CA 2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-487 6 Smith River CA 2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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