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: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-441 A Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808      
321-441 0 Winter Park FL WNPKFLXEXBX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45808   2011-06-02   
321-441 1 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808      
321-441 2 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808      
321-441 3 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808   2006-03-30   
321-441 4 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808   2006-03-30   
321-441 5 Winter Park FL WNPKFLXEXEX  899D METROPCS NETWORKS, LLC 45808   2005-05-01   
321-441 6 Winter Park FL WNPKFLXEXEX  899D METROPCS NETWORKS, LLC 45808   2005-05-01   
321-441 7 Winter Park FL ORLDFLMAYBY  829J PAETEC ITEL, LLC 45808   2007-06-11   
321-441 8 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808   2007-03-18   
321-441 9 Winter Park FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45808   2010-06-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.