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: 933

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-933 A St Peter MN STPRMNSPDS0  9631 QWEST CORPORATION 620      
507-933 0 St Peter MN   980E BANDWIDTH.COM CLEC, LLC - MN 620   2008-11-30   
507-933 1 St Peter MN   073H TELNYX LLC 620   2020-07-23   
507-933 2 St Peter MN   7783 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN 620   2020-08-03   
507-933 4 St Peter MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2004-12-14   
507-933 5 St Peter MN   184D ONVOY, LLC - MN 620   2004-05-20   
507-933 6 St Peter MN   9631 QWEST CORPORATION 620      
507-933 7 St Peter MN   9631 QWEST CORPORATION 620      
507-933 8 St Peter MN   9631 QWEST CORPORATION 620      
507-933 9 St Peter MN   184D ONVOY, LLC - MN 620   2002-08-14   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.