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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-557 A St Joseph MN WTPKMNAC0MD  447D CHARTER FIBERLINK CCO, LLC - MN 626   2006-10-20   
320-557 0 St Joseph MN   447D CHARTER FIBERLINK CCO, LLC - MN 626      
320-557 1 St Joseph MN   4156 TEKSTAR COMMUNICATIONS, INC. 626   2017-12-29   
320-557 2 St Joseph MN   4587 CONSOLIDATED COMMUNICATIONS ENTERPRISE SVCS-MN 626   2011-12-02   
320-557 3 St Joseph MN   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2019-09-14   
320-557 4 St Joseph MN   184D ONVOY, LLC MN 626   2019-02-25   
320-557 5 St Joseph MN   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2013-06-07   
320-557 6 St Joseph MN   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2015-06-15   
320-557 7 St Joseph MN   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2016-07-21   
320-557 8 St Joseph MN   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2017-10-24   
320-557 9 St Joseph MN   184D ONVOY, LLC MN 626   2019-02-25   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.