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: 586 [Rate centres in NPA 586] [Dial plan for NPA 586]

NXX: 416

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
586-416 A Mount Clemens MI MTCLMICLDS0  9323 MICHIGAN BELL TEL CO 340      
586-416 0 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 1 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 2 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 3 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 4 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 5 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 6 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 7 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 8 Mount Clemens MI   9323 MICHIGAN BELL TEL CO 340      
586-416 9 Mount Clemens MI   2550 123.NET, LLC 340   2008-03-13   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.