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: 728 [Rate centres in NPA 728] [Dial plan for NPA 728]

NXX: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
728-204 A Delray Beach FL   982E BANDWIDTH.COM CLEC, LLC - FL 46018   2025-03-06   
728-204 0 Delray Beach FL   982E BANDWIDTH.COM CLEC, LLC - FL 46018   2025-03-06   
728-204 9 Delray Beach FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 46018   2025-03-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.