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: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-584 A Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 0 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 1 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 2 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 3 Dexter MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2016-07-29   
507-584 4 Dexter MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2015-06-18   
507-584 5 Dexter MN ROCHMNROXRX  073H TELNYX LLC 620   2021-09-25   
507-584 6 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 7 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 8 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
507-584 9 Dexter MN DXTRMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.