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: 753

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-753 A Silver Lake MN   593K MCC TELEPHONY LLC 628      
320-753 0 Silver Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-753 1 Silver Lake MN MPLSMNCDZMD  073H TELNYX LLC 628      
320-753 3 Silver Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-753 4 Silver Lake MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-753 5 Silver Lake MN MPLSMNCD9MD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 628      
320-753 6 Silver Lake MN   593K MCC TELEPHONY LLC 628      
320-753 7 Silver Lake MN MPLSMNFD2MD  508J CENTURYLINK COMMUNICATIONS, LLC 628      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.