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: OSSEMNXOMMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-408 9 Plato MN 184D ONVOY, LLC - MN 628   2023-09-03   
320-462 0 Glencoe MN 184D ONVOY, LLC - MN 628   2023-09-03   
320-620 A Glencoe MN 184D ONVOY, LLC - MN 628      
320-620 6 Glencoe MN 184D ONVOY, LLC - MN 628   2022-11-16   
320-620 7 Glencoe MN 184D ONVOY, LLC - MN 628   2022-11-16   
320-832 0 Brownton MN 184D ONVOY, LLC - MN 628   2023-09-03   
952-521 A Norwood MN 184D ONVOY, LLC - MN 628      
952-521 5 Norwood MN 184D ONVOY, LLC - MN 628   2021-07-18   
952-866 1 Norwood MN 184D ONVOY, LLC - MN 628   2023-09-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.