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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-544 A Rushmore MN WOTNMNAIDS0  4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 0 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 1 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 2 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 3 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 4 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 5 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 6 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 7 Rushmore MN   4768 CLARITY TELECOM, LLC DBA BLUEPEAK 620      
507-544 8 Rushmore MN   980E BANDWIDTH.COM CLEC, LLC - MN 620   2019-03-23   
507-544 9 Rushmore MN   184D ONVOY, LLC - MN 620   2019-09-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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