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.

Switch: LNGLWYXCRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-837 A Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 0 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 1 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 2 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 3 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 4 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 5 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 6 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 7 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      
307-837 8 Lingle WY 4531 UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY 646      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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