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: 685

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-685 A Morristown MN MRTWMNXMDS0  1440 CANNON VALLEY TELECOM, INC. 620      
507-685 0 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 1 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 2 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 4 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 5 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 6 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      
507-685 7 Morristown MN   719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2022-07-24   
507-685 9 Morristown MN   1440 CANNON VALLEY TELECOM, INC. 620      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.