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.
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NPA: 615 [Rate centres in NPA 615] [Dial plan for NPA 615]

NXX: 518

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
615-518 A Gallatin TN   525E ONVOY, LLC - TN 470   2026-10-26   
615-518 0 Gallatin TN   525E ONVOY, LLC - TN 470   2026-10-26   
615-518 1 Gallatin TN   525E ONVOY, LLC - TN 470   2026-10-26   
615-518 9 Gallatin TN   124F BANDWIDTH.COM CLEC, LLC - TN 470   2026-11-07   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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