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: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-509 A Cocoa Beach FL   937C ONVOY, LLC - FL 45806   2025-04-05   
321-509 0 Cocoa Beach FL   937C ONVOY, LLC - FL 45806   2025-04-05   
321-509 8 Cocoa Beach FL   515J IP HORIZON LLC 45806   2025-05-10   
321-509 9 Cocoa Beach FL   515J IP HORIZON LLC 45806   2025-05-10   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.