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: PRKRAZXCDS0

Remotes:

Switch Switch name Switch type
BGRVCAXFRS2  BIG RIVER  1RC 
BOUSAZXCRS1  BOUSE  1RE 
HVSUCAXFRS1  HAVASU LANDING  1RE 
PSTNAZXCRS1  POSTON  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-669 A Parker AZ 4419 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ 730      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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