Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-478 A Rushmore MN RSHMMNXARS0  1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-478 0 Rushmore MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2023-03-16   
507-478 1 Rushmore MN RSHMMNXARS0  1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-478 2 Rushmore MN RSHMMNXARS0  1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-478 3 Rushmore MN ROCHMNROXRX  073H TELNYX LLC 620   2024-05-12   
507-478 4 Rushmore MN RSHMMNXARS0  1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      
507-478 6 Rushmore MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2017-06-22   
507-478 7 Rushmore MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2017-12-29   
507-478 8 Rushmore MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2015-06-20   
507-478 9 Rushmore MN RSHMMNXARS0  1445 CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK 620      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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