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.

Klamath, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
707-482 A KLMTCAXFRS1  2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-482 0 KLMTCAXFRS1  2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-482 1 KLMTCAXFRS1  2344 FRONTIER COMMUNICATIONS WEST COAST INC. - CA 722      
707-482 7 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-03-19   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.