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: CHYNWYMAX2X

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-910 0 Cheyenne WY 450F ONVOY, LLC - WY 654   2021-06-24   
307-910 1 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-09-15   
307-910 2 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-11-03   
307-910 3 Cheyenne WY 450F ONVOY, LLC - WY 654   2025-01-05   
307-939 0 Wright WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-939 5 Wright WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-939 7 Wright WY 450F ONVOY, LLC - WY 654   2007-03-23   
307-939 9 Wright WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-990 1 Lander WY 450F ONVOY, LLC - WY 654   2023-07-23   
307-990 4 Lander WY 450F ONVOY, LLC - WY 654   2024-03-07   
307-990 5 Lander WY 450F ONVOY, LLC - WY 654   2024-07-08   
307-990 8 Lander WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-990 9 Lander WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-996 A Cheyenne WY 450F ONVOY, LLC - WY 654      
307-996 5 Cheyenne WY 450F ONVOY, LLC - WY 654   2023-04-24   
307-998 A Sheridan WY 450F ONVOY, LLC - WY 654   2024-08-05   
307-998 0 Sheridan WY 450F ONVOY, LLC - WY 654   2024-08-05   
307-999 0 Moran WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-999 1 Moran WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-999 2 Moran WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-999 3 Moran WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-999 6 Moran WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-999 7 Moran WY 450F ONVOY, LLC - WY 654   2018-11-02   
307-999 8 Moran WY 450F ONVOY, LLC - WY 654   2018-11-02   
406-574 2 Silvertip MT 453F ONVOY, LLC - MT 654   2021-07-05   
406-643 A North Parkman MT 453F ONVOY, LLC - MT 654      
406-643 0 North Parkman MT 453F ONVOY, LLC - MT 654   2012-12-17   
406-643 2 North Parkman MT 453F ONVOY, LLC - MT 654   2021-02-11   
406-643 3 North Parkman MT 453F ONVOY, LLC - MT 654   2021-02-11   
406-643 4 North Parkman MT 453F ONVOY, LLC - MT 654   2020-11-10   
406-643 5 North Parkman MT 453F ONVOY, LLC - MT 654   2021-07-05   
406-643 6 North Parkman MT 453F ONVOY, LLC - MT 654   2019-09-15   
406-643 7 North Parkman MT 453F ONVOY, LLC - MT 654   2007-07-18   
406-659 7 North Parkman MT 453F ONVOY, LLC - MT 654   2011-10-24   
406-840 A Silvertip MT 453F ONVOY, LLC - MT 654      
406-840 0 Silvertip MT 453F ONVOY, LLC - MT 654   2012-12-17   
406-840 5 Silvertip MT 453F ONVOY, LLC - MT 654   2019-09-15   
406-840 6 Silvertip MT 453F ONVOY, LLC - MT 654   2019-09-15   
406-840 7 Silvertip MT 453F ONVOY, LLC - MT 654   2007-07-15   
406-840 8 Silvertip MT 453F ONVOY, LLC - MT 654   2011-07-11   
435-281 2 Coalville UT 871E ONVOY, LLC - UT 660   2021-03-26   
435-281 3 Coalville UT 871E ONVOY, LLC - UT 660   2021-03-26   
435-281 5 Coalville UT 871E ONVOY, LLC - UT 660   2021-10-31   
435-281 6 Coalville UT 871E ONVOY, LLC - UT 660   2021-12-09   
435-292 A Coalville UT 871E ONVOY, LLC - UT 660      
435-292 2 Coalville UT 871E ONVOY, LLC - UT 660   2020-05-26   
435-292 3 Coalville UT 871E ONVOY, LLC - UT 660   2020-09-10   
435-292 4 Coalville UT 871E ONVOY, LLC - UT 660   2019-07-08   
435-292 5 Coalville UT 871E ONVOY, LLC - UT 660   2019-07-08   
435-292 6 Coalville UT 871E ONVOY, LLC - UT 660   2013-12-26   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.