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.

Burns, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-236 A CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-236 8 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-06-04   
307-236 9 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-06-04   
307-547 A BRNSWYXCRS1  3410 RT COMMUNICATIONS 654      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.