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: CTWDNMXCDS0

Remotes:

Switch Switch name Switch type
HONDNMXCRS0  HONDO  RLC 
HOPENMXCRS0  HOPE  RLC 
LCHLNMXCRS0  LOCO HILLS  RLC 
LKWDNMXCRS0  LAKEWOOD  RLC 
MYHLNMXCRS0  MAYHILL  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
575-364 A Cottonwood NM 2270 PENASCO VALLEY TEL. COOP., INC. 664      
575-365 A Cottonwood NM 2270 PENASCO VALLEY TEL. COOP., INC. 664      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.