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.

Cottonwood, MN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
507-423 A CTWDMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-992 A ROCHMNHH0MD  447D CHARTER FIBERLINK CCO, LLC - MN 620   2006-10-20   
507-992 0   447D CHARTER FIBERLINK CCO, LLC - MN 620      
507-992 1   184D ONVOY, LLC MN 620   2017-05-29   
507-992 2   184D ONVOY, LLC MN 620   2019-09-11   
507-992 6   7575 CENTURYLINK COMMUNICATIONS LLC 620   2017-05-10   
507-992 7   184D ONVOY, LLC MN 620   2014-12-31   
507-992 8   073H TELNYX LLC 620   2020-07-12   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.