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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-624 A Byron MN ROCHMNHH0MD  447D CHARTER FIBERLINK CCO, LLC - MN 620   2006-10-20   
507-624 0 Byron MN   447D CHARTER FIBERLINK CCO, LLC - MN 620      
507-624 7 Byron MN   7575 CENTURYLINK COMMUNICATIONS LLC 620   2017-05-09   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.