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: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-584 A Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 0 Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 2 Royalton MN STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2006-02-26   
320-584 3 Royalton MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2007-04-13   
320-584 4 Royalton MN STCDMNTOXYX  7770 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 626   2008-01-28   
320-584 5 Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 6 Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 7 Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 8 Royalton MN RYTNMNRNRS5  9631 QWEST CORPORATION 626      
320-584 9 Royalton MN STCDMNTOXRX  980E BANDWIDTH.COM CLEC, LLC - MN 626   2008-11-30   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.