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: 324 [Rate centres in NPA 324] [Dial plan for NPA 324]

NXX: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
324-529 A Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 3 Maxville FL   824J OPENTACT INC. 45204   2026-04-23   
324-529 4 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 5 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 6 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 7 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 8 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   
324-529 9 Maxville FL   937C ONVOY, LLC - FL 45204   2026-02-20   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.