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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-579 A Tyler MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-579 0 Tyler MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2017-05-29   
507-579 1 Tyler MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-30   
507-579 5 Tyler MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-11-07   
507-579 7 Tyler MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2015-01-05   
507-579 8 Tyler MN ROCHMNROXRX  073H TELNYX LLC 620   2020-07-23   
507-579 9 Tyler MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-10-23   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.