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: 906 [Rate centres in NPA 906] [Dial plan for NPA 906]

NXX: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-220 A North Land O'Lakes MI MNSGMIXJDS2  116F PENINSULA FIBER NETWORK, LLC - MI 342      
906-220 0 North Land O'Lakes MI   116F PENINSULA FIBER NETWORK, LLC - MI 342   2013-11-23   
906-220 1 North Land O'Lakes MI   792K CHARTER IP ENABLED SERVICES, LLC 342   2025-10-26   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.