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: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-200 A Jackson WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-200 0 Jackson WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-200 1 Jackson WY JCSNWYMA1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-200 2 Jackson WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-200 3 Jackson WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654      
307-200 4 Jackson WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-200 5 Jackson WY CHYNWY07GMD  6529 T-MOBILE USA, INC. 654      
307-200 6 Jackson WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654      
307-200 7 Jackson WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654      
307-200 8 Jackson WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654      
307-200 9 Jackson WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.