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: 812

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-812 A Caledonia MN ROCHMNROX0X  980E BANDWIDTH.COM CLEC, LLC - MN 620      
507-812 0 Caledonia MN ROCHMNROX0X  980E BANDWIDTH.COM CLEC, LLC - MN 620   2022-04-01   
507-812 1 Caledonia MN ROCHMNROXRX  073H TELNYX LLC 620   2023-04-01   
507-812 2 Caledonia MN   5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 620   2025-04-28   
507-812 6 Caledonia MN ROCHMNHI9MD  939H COMMIO, LLC 620   2023-10-20   
507-812 7 Caledonia MN ROCHMNHI9MD  939H COMMIO, LLC 620   2023-10-20   
507-812 8 Caledonia MN ROCHMNHI9MD  939H COMMIO, LLC 620   2023-10-20   
507-812 9 Caledonia MN ROCHMNHI9MD  939H COMMIO, LLC 620   2023-10-20   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.