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.

NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 629

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-629 A Newcastle WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-629 0 Newcastle WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2005-02-14   
307-629 1 Newcastle WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2006-08-26   
307-629 4 Newcastle WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2017-10-15   
307-629 8 Newcastle WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654   2019-10-23   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.