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: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-336 A Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 0 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 1 Daniel WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-336 2 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 3 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 4 Daniel WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-336 5 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 6 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 7 Daniel WY BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-336 8 Daniel WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-336 9 Daniel WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.