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: 204 [Rate centres in NPA 204] [Dial plan for NPA 204]

NXX: 906

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
204-906 A Stonewall MB STNWMB015MD  6574 BELL CELLULAR, INC. 888 808809    

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.