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: PLNSTXXAPS0

Remotes:

Switch Switch name Switch type
HGHMTXXARP0  HIGGINBOTHAM  RP 
HGHMTXXARS0  HIGGINBOTHAM  1RE 
PLNSTXXARP0  PLAINS  DLM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-616 A Plains TX 2153 TEXAS WINDSTREAM, LLC 544      
806-616 9 Plains TX 2153 TEXAS WINDSTREAM, LLC 544   2016-09-23   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.