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: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-343 A Laramie WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-343 0 Laramie WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-343 1 Laramie WY CHYNWYRFDS0  581H AIRUS, INC. - WY 654      
307-343 2 Laramie WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-343 3 Laramie WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-343 4 Laramie WY CHYNWYMAX4X  370E YMAX COMMUNICATIONS CORP. - WY 654      
307-343 5 Laramie WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-343 6 Laramie WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-343 7 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-343 8 Laramie WY CHYNWYRF1MD  073H TELNYX LLC 654      
307-343 9 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.