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: 202

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-202 A Powell WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-202 0 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-202 1 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-202 2 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-202 3 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-202 4 Powell WY   450F ONVOY, LLC - WY 654   2012-12-13   
307-202 5 Powell WY   450F ONVOY, LLC - WY 654   2012-12-13   
307-202 6 Powell WY   450F ONVOY, LLC - WY 654   2012-12-13   
307-202 7 Powell WY   450F ONVOY, LLC - WY 654   2012-12-13   
307-202 8 Powell WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-06-20   
307-202 9 Powell WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2015-02-12   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.