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.

OCN: 110G SILVER STAR TELEPHONE COMPANY, INC. - WY

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
307-201 5 Jackson WY FRDMWYXCDS3  654      
307-249 5 Jackson WY FRDMWYXCDS3  654      
307-284 A Jackson WY CSPRWYMAXCX  654      
307-284 0 Jackson WY CSPRWYMAXCX  654      
307-418 5 Jackson WY FRDMWYXCDS3  654      
307-418 6 Jackson WY FRDMWYXCDS3  654      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.