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: 321 [Rate centres in NPA 321] [Dial plan for NPA 321]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-999 A Sanford FL   899D METROPCS NETWORKS, LLC 45806      
321-999 0 Sanford FL   937C ONVOY, LLC - FL 45806   2012-06-07   
321-999 1 Sanford FL   982E BANDWIDTH.COM CLEC, LLC - FL 45806   2016-08-18   
321-999 2 Sanford FL   982E BANDWIDTH.COM CLEC, LLC - FL 45806   2016-08-18   
321-999 3 Sanford FL   937C ONVOY, LLC - FL 45806   2012-06-07   
321-999 4 Sanford FL   899D METROPCS NETWORKS, LLC 45806   2016-12-24   
321-999 5 Sanford FL   899D METROPCS NETWORKS, LLC 45806   2016-12-24   
321-999 6 Sanford FL   937C ONVOY, LLC - FL 45806   2012-06-07   
321-999 7 Sanford FL   937C ONVOY, LLC - FL 45806   2018-11-30   
321-999 8 Sanford FL   937C ONVOY, LLC - FL 45806   2012-06-07   
321-999 9 Sanford FL   937C ONVOY, LLC - FL 45806   2016-02-05   

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

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.