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.

OCN: 1439 MINNESOTA VALLEY TEL. CO., INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
507-336 A Milroy MN MLRYMNXMRS3  620   2024-01-30   
507-557 A Franklin MN FKLNMNXFRS0  620   2024-02-20   
507-747 A Lucan MN LUCNMNXLRS7  620   2024-01-30   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.