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: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-553 A Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-553 0 Escanaba MI IRMTMIMNPMD  2550 123.NET, LLC 342   2004-10-29   
906-553 1 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2006-07-03   
906-553 2 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2005-04-21   
906-553 3 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2010-05-26   
906-553 4 Escanaba MI MRQTMIMNCMD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342   2005-03-19   
906-553 5 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2009-11-04   
906-553 6 Escanaba MI MRQTMIMNCMD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342   2006-10-10   
906-553 7 Escanaba MI NGNEMIAM2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 342   2007-04-23   
906-553 8 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2007-04-30   
906-553 9 Escanaba MI NGNEMIAM6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2008-03-20   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.