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: 313

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-313 A Evanston WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-313 0 Evanston WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-313 1 Evanston WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-313 2 Evanston WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-313 3 Evanston WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654      
307-313 4 Evanston WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-313 5 Evanston WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-313 6 Evanston WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-313 7 Evanston WY CHYNWYMAXAX  508J CENTURYLINK COMMUNICATIONS, LLC 654      
307-313 8 Evanston WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-313 9 Evanston WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.