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.

Trout Creek, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
906-559 A MNSGMIXJDS2  116F PENINSULA FIBER NETWORK, LLC - MI 342      
906-559 0 MNSGMIXJDS2  116F PENINSULA FIBER NETWORK, LLC - MI 342   2013-11-23   
906-852 A TRCKMIXJRS1  0711 MIDWAY TEL. CO. 342      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.