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: 352

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-352 A Orlando FL ORLDFLMAY4X  516C AT&T CORP. 45806      
321-352 0 Orlando FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 45806   2009-02-26   
321-352 1 Orlando FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 45806   2009-03-08   
321-352 2 Orlando FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 45806   2009-03-08   
321-352 3 Orlando FL   937C ONVOY, LLC - FL 45806   2009-11-29   
321-352 4 Orlando FL   937C ONVOY, LLC - FL 45806   2009-11-29   
321-352 5 Orlando FL   937C ONVOY, LLC - FL 45806   2009-11-29   
321-352 6 Orlando FL   937C ONVOY, LLC - FL 45806   2009-11-29   
321-352 7 Orlando FL   516C AT&T CORP. 45806   2008-12-21   
321-352 8 Orlando FL   829J PAETEC ITEL, LLC 45806   2009-03-18   
321-352 9 Orlando FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 45806   2009-02-26   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.