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.

Switch: STPLMNMKTMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-588 A Finlayson MN 624H ONVOY SPECTRUM, LLC 628      
612-491 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
612-515 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
612-633 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
651-422 A North Branch MN 624H ONVOY SPECTRUM, LLC 628      
651-477 A St Croix Beach MN 624H ONVOY SPECTRUM, LLC 628      
651-655 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
763-285 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
763-329 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
763-766 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
952-247 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      
952-954 A Twin Cities MN 624H ONVOY SPECTRUM, LLC 628      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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