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: 975 [Rate centres in NPA 975] [Dial plan for NPA 975]

NXX: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
975-204 A Kansas City MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2026-01-03   
975-204 0 Kansas City MO   993E BANDWIDTH.COM CLEC, LLC - MO 524   2026-01-05   
975-204 7 Kansas City MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2026-01-03   
975-204 8 Kansas City MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2026-01-03   
975-204 9 Kansas City MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2026-01-03   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.