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: TAFTCAXFDS0

Remotes:

Switch Switch name Switch type
BRMSCAXFRL1  BERRENDA MESA  RLC 
BTNWCAXFRS3  BUTTONWILLOW  RSC 
CHSPCAXFRS1  CALIFORNIA HOT SPRINGS  RSC 
CUYMCAXFRS1  CUYAMA  RSC 
FLWSCAXFRS2  FELLOWS  RSC 
GLVLCAXFRS9  GLENNVILLE  RSC 
LSHLCAXFRS5  LOST HILLS  RSC 
MCFACAXFRS8  MCFARLAND  RSC 
MCKTCAXFRS1  MCKITTRICK  RSC 
MRCPCAXFRS1  MARICOPA  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-765 A Taft CA 4420 FRONTIER CALIFORNIA INC. 734      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.