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: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-358 A Watersmeet MI WTRMMIMNRSA  9323 MICHIGAN BELL TEL CO 342      
906-358 0 Watersmeet MI WTRMMIMNRSA  9323 MICHIGAN BELL TEL CO 342      
906-358 2 Watersmeet MI NGNEMIAM2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 342   2007-09-29   
906-358 4 Watersmeet MI WTRMMIMNRSA  9323 MICHIGAN BELL TEL CO 342      
906-358 7 Watersmeet MI BRLDMIMNBMD  516C AT&T CORP. 342   2013-02-22   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.