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: 239 [Rate centres in NPA 239] [Dial plan for NPA 239]

NXX: 520

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
239-520 A North Naples FL   515J IP HORIZON LLC 93902   2025-12-18   
239-520 1 North Naples FL   515J IP HORIZON LLC 93902   2025-12-18   
239-520 2 North Naples FL   515J IP HORIZON LLC 93902   2025-12-18   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.