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: CHYNWYMAXDX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-219 6 Powell WY 073H TELNYX LLC 654   2021-07-24   
307-249 A Jackson WY 073H TELNYX LLC 654      
307-249 0 Jackson WY 073H TELNYX LLC 654   2017-05-08   
307-340 9 Lusk WY 073H TELNYX LLC 654   2021-07-04   
435-281 0 Coalville UT 073H TELNYX LLC 660   2021-03-26   
435-281 9 Coalville UT 073H TELNYX LLC 660   2023-06-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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