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.

Big Piney, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-260 A CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-276 A BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 0 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 1 CHYNWYMAXAX  508J CENTURYLINK COMMUNICATIONS, LLC 654   2015-01-18   
307-276 2 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 3 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 4 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 5 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 6 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 7 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 8 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-276 9 BGPNWYXCDS0  2299 CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK 654      
307-294 A CHYNWYMAX9X  879G TELEPORT COMMUNICATIONS AMERICA WY-LLC 654      
307-294 0 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2023-10-12   
307-294 6 CHYNWYMAX9X  879G TELEPORT COMMUNICATIONS AMERICA WY-LLC 654   2023-10-02   
307-456 A BGPNWYXC7MD  450F ONVOY, LLC - WY 654      
307-456 0 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2021-07-10   
307-456 1 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2023-06-18   
307-456 2 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2022-10-28   
307-456 3 CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2023-01-27   
307-456 4 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2020-09-05   
307-456 5 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2020-12-19   
307-456 6 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2020-12-19   
307-456 7 BGPNWYXC7MD  450F ONVOY, LLC - WY 654   2019-09-21   
307-456 8 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-09-21   
307-456 9 CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2020-09-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.