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: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-238 A Plato MN PLATMNXPRS0  1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-238 0 Plato MN PLATMNXPRS0  1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-238 1 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2019-02-25   
320-238 2 Plato MN PLATMNXPRS0  1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-238 4 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2020-11-07   
320-238 5 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2021-03-11   
320-238 7 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2016-04-14   
320-238 8 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2016-04-14   
320-238 9 Plato MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2019-02-25   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.