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: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 389

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-389 A Buffalo Lake MN   593K MCC TELEPHONY LLC 628      
320-389 0 Buffalo Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-389 2 Buffalo Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-389 3 Buffalo Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-389 4 Buffalo Lake MN STPLMNMKTMD  624H ONVOY SPECTRUM, LLC 628      
320-389 5 Buffalo Lake MN MPLSMNCD9MD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 628      
320-389 7 Buffalo Lake MN MPLSMNFD2MD  508J CENTURYLINK COMMUNICATIONS, LLC 628      
320-389 8 Buffalo Lake MN MPLSMNCDZMD  073H TELNYX LLC 628      
320-389 9 Buffalo Lake MN   593K MCC TELEPHONY LLC 628      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.