Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 321 [Rate centres in NPA 321] [Dial plan for NPA 321]

NXX: 534

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-534 A Titusville FL   937C ONVOY, LLC - FL 45806   2026-03-26   
321-534 0 Titusville FL   937C ONVOY, LLC - FL 45806   2026-03-26   
321-534 6 Titusville FL   8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 45806   2026-04-20   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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