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.

NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-492 A Madison Lake MN MNKTMNXMVMD  184D ONVOY, LLC - MN 620      
507-492 1 Madison Lake MN MNKTMNXMVMD  184D ONVOY, LLC - MN 620   2011-07-15   
507-492 4 Madison Lake MN MNKTMNXMVMD  184D ONVOY, LLC - MN 620   2022-10-12   
507-492 7 Madison Lake MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2017-11-30   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.