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: ARPSTXXAAMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
361-312 A Aransas Pass TX 732J NUSO, LLC 564      
361-312 1 Aransas Pass TX 732J NUSO, LLC 564   2023-01-08   
361-312 2 Aransas Pass TX 732J NUSO, LLC 564   2023-11-23   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.