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: BLNGMTAS9MD

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-284 7 Manhattan MT 453F ONVOY, LLC - MT 650   2007-03-19   
406-284 8 Manhattan MT 453F ONVOY, LLC - MT 650   2011-10-24   
406-285 7 Three Forks MT 453F ONVOY, LLC - MT 650   2007-03-19   
406-290 A Columbus MT 453F ONVOY, LLC - MT 650      
406-290 7 Columbus MT 453F ONVOY, LLC - MT 650   2007-05-06   
406-298 4 Columbus MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-298 7 Columbus MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-306 A Manhattan MT 453F ONVOY, LLC - MT 650      
406-306 1 Manhattan MT 453F ONVOY, LLC - MT 650   2017-12-22   
406-306 2 Manhattan MT 453F ONVOY, LLC - MT 650   2019-10-28   
406-306 3 Manhattan MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-306 4 Manhattan MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-306 5 Manhattan MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-306 6 Manhattan MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-306 7 Manhattan MT 453F ONVOY, LLC - MT 650   2020-04-04   
406-312 6 Bozeman MT 453F ONVOY, LLC - MT 650   2019-01-05   
406-312 7 Bozeman MT 453F ONVOY, LLC - MT 650   2019-01-05   
406-318 8 Billings MT 453F ONVOY, LLC - MT 650   2015-12-10   
406-321 5 Columbus MT 453F ONVOY, LLC - MT 650   2021-02-11   
406-321 6 Columbus MT 453F ONVOY, LLC - MT 650   2021-02-11   
406-325 6 Billings MT 453F ONVOY, LLC - MT 650   2015-12-10   
406-333 7 Livingston MT 453F ONVOY, LLC - MT 650   2006-10-20   
406-341 A Manhattan MT 453F ONVOY, LLC - MT 650      
406-341 0 Manhattan MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-341 1 Manhattan MT 453F ONVOY, LLC - MT 650   2020-08-20   
406-341 2 Manhattan MT 453F ONVOY, LLC - MT 650   2020-08-20   
406-341 3 Manhattan MT 453F ONVOY, LLC - MT 650   2021-02-22   
406-341 4 Manhattan MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-341 5 Manhattan MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-341 6 Manhattan MT 453F ONVOY, LLC - MT 650   2021-02-22   
406-341 7 Manhattan MT 453F ONVOY, LLC - MT 650   2021-02-22   
406-341 8 Manhattan MT 453F ONVOY, LLC - MT 650   2021-02-22   
406-341 9 Manhattan MT 453F ONVOY, LLC - MT 650   2021-02-22   
406-345 0 Glendive (Mid-Rivers) MT 453F ONVOY, LLC - MT 650   2016-12-23   
406-345 6 Glendive (Mid-Rivers) MT 453F ONVOY, LLC - MT 650   2019-10-28   
406-351 7 Forsyth MT 453F ONVOY, LLC - MT 650   2011-10-21   
406-356 0 Forsyth MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-356 8 Forsyth MT 453F ONVOY, LLC - MT 650   2007-04-14   
406-359 6 Glendive MT 453F ONVOY, LLC - MT 650   2006-10-20   
406-365 0 Glendive MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-384 5 Billings MT 453F ONVOY, LLC - MT 650   2016-07-29   
406-404 2 Bozeman MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-404 3 Bozeman MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-409 3 Billings MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-409 4 Billings MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-409 7 Billings MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-412 A Billings MT 453F ONVOY, LLC - MT 650      
406-412 0 Billings MT 453F ONVOY, LLC - MT 650   2017-06-21   
406-412 1 Billings MT 453F ONVOY, LLC - MT 650   2017-06-21   
406-412 2 Billings MT 453F ONVOY, LLC - MT 650   2017-06-21   

<< 1 2 3 4 5 6 7 8 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.