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: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-405 A Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628      
320-405 0 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2021-01-04   
320-405 1 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2021-01-04   
320-405 2 Hutchinson MN MPLSMNCD9MD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 628   2020-05-04   
320-405 3 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2018-04-23   
320-405 4 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2018-04-23   
320-405 5 Hutchinson MN EAGNMNZO3MD  5562 METROPCS, INC. 628   2017-12-16   
320-405 6 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2017-01-07   
320-405 7 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2014-04-11   
320-405 8 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2014-04-11   
320-405 9 Hutchinson MN EAGNMNZO3MD  6701 AERIAL COMMUNICATIONS, INC. 628   2013-06-16   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.