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: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-420 A Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 0 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 1 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 2 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 3 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 4 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 5 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 6 Gladstone MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-420 7 Gladstone MI MRQTMIMNCMD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342      
906-420 8 Gladstone MI NGNEMIAM2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 342      
906-420 9 Gladstone MI   624H ONVOY SPECTRUM, LLC 342      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.