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: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-565 A Janesville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-565 0 Janesville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2017-05-29   
507-565 4 Janesville MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-10-23   
507-565 5 Janesville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-11-06   
507-565 6 Janesville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-12   
507-565 7 Janesville MN OWTNMNOWYMD  508J CENTURYLINK COMMUNICATIONS, LLC 620   2017-04-28   
507-565 8 Janesville MN ROCHMNROXRX  073H TELNYX LLC 620   2020-07-19   
507-565 9 Janesville MN ROCHMNROX2Y  495J STRATUS NETWORKS 620   2021-04-11   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.