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: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-603 A Titusville FL ORLDFLCLXAY  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 45806      
321-603 0 Titusville FL ORLDFLCLX0Y  927D BRIGHT HOUSE NTWS INFORMATION SVCS (FLORIDA) - FL 45806      
321-603 1 Titusville FL ORLFFL051MD  899D METROPCS NETWORKS, LLC 45806      
321-603 2 Titusville FL ORLDFLCLX0Y  927D BRIGHT HOUSE NTWS INFORMATION SVCS (FLORIDA) - FL 45806      
321-603 3 Titusville FL ORLDFL60X1X  073H TELNYX LLC 45806      
321-603 4 Titusville FL   515J IP HORIZON LLC 45806      
321-603 5 Titusville FL   516C AT&T CORP. 45806      
321-603 6 Titusville FL ORLDFLCLXAY  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 45806      
321-603 7 Titusville FL ORLFFL051MD  899D METROPCS NETWORKS, LLC 45806      
321-603 8 Titusville FL ORLFFL051MD  899D METROPCS NETWORKS, LLC 45806      
321-603 9 Titusville FL LKMRFL16G04  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45806      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.