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.

OCN: 6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY

<< 1 2 3 4 5 6 7 8

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
307-941 0 Newcastle WY CHYNWYMAXIX  654      
307-941 1 Newcastle WY CHYNWYMAXIX  654      
307-941 2 Newcastle WY CHYNWYMAXIX  654   2012-09-07   
307-949 A Newcastle WY CHYNWYMAXIX  654      
307-949 0 Newcastle WY CHYNWYMAXIX  654      
307-996 6 Cheyenne WY CHYNWYMAXIX  654   2011-02-05   
307-996 7 Cheyenne WY CHYNWYMAXIX  654   2011-07-08   
307-996 8 Cheyenne WY CHYNWYMAXIX  654   2021-07-26   

<< 1 2 3 4 5 6 7 8

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.