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.

Comfrey, MN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
507-877 A CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 0 ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-11   
507-877 1 OWTNMNOWYMD  508J CENTURYLINK COMMUNICATIONS, LLC 620   2017-05-10   
507-877 2 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 3 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 4 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 5 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 6 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-877 7 ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2015-08-25   
507-877 8 ROCHMNROUMD  184D ONVOY, LLC - MN 620   2014-12-31   
507-877 9 CMFRMNXCRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.