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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-309 A Melbourne FL ORLFFLEJDMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 0 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 1 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 2 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 3 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 4 Melbourne FL   965H FRACTEL, LLC 45806      
321-309 5 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 6 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 7 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 8 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      
321-309 9 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.