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: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-636 A Mountain Lake MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-636 0 Mountain Lake MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-14   
507-636 1 Mountain Lake MN ROCHMNROXRX  073H TELNYX LLC 620   2020-07-20   
507-636 3 Mountain Lake MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-12   
507-636 5 Mountain Lake MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-11-07   
507-636 6 Mountain Lake MN OWTNMNOWYMD  508J CENTURYLINK COMMUNICATIONS, LLC 620   2017-05-02   
507-636 7 Mountain Lake MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2015-01-05   
507-636 8 Mountain Lake MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-10-23   
507-636 9 Mountain Lake MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-06-21   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.