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: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 608

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-608 A Houston MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 522   2025-05-03   
417-608 0 Houston MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 522   2025-05-03   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.