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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-704 A Altura MN ROCHMNHH0MD  447D CHARTER FIBERLINK, LLC - MN 620      
507-704 0 Altura MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2017-11-19   
507-704 1 Altura MN ROCHMNHH0MD  447D CHARTER FIBERLINK, LLC - MN 620   2016-10-01   
507-704 2 Altura MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2023-02-25   
507-704 3 Altura MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-06-21   
507-704 4 Altura MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-11   
507-704 6 Altura MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-10-23   
507-704 7 Altura MN OWTNMNOWYMD  508J CENTURYLINK COMMUNICATIONS, LLC 620   2017-05-06   
507-704 8 Altura MN ROCHMNROXRX  073H TELNYX LLC 620   2020-06-29   
507-704 9 Altura MN ROCHMNHI9MD  939H COMMIO, LLC 620   2023-05-07   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.