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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-203 A Jackson WY CSPRWYMASMD  6664 SPRINT SPECTRUM L.P. 654      
307-203 0 Jackson WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-11-21   
307-203 1 Jackson WY   581H AIRUS, INC. - WY 654   2017-03-11   
307-203 2 Jackson WY   009E BRESNAN BROADBAND OF WYOMING, LLC - WY (CHARTER) 654   2006-01-09   
307-203 3 Jackson WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-12-19   
307-203 4 Jackson WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-12-19   
307-203 5 Jackson WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-10-14   
307-203 6 Jackson WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-01-04   
307-203 7 Jackson WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2012-06-25   
307-203 8 Jackson WY   6664 SPRINT SPECTRUM L.P. 654   2007-12-18   
307-203 9 Jackson WY   6664 SPRINT SPECTRUM L.P. 654      

Last updated: Sun, 29 Nov 2020 13:13:58 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.