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: 693

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
586-693 A Warren MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 0 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 1 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 2 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 3 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 4 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 5 Warren MI   516C AT&T CORP. 340   2005-06-18   
586-693 6 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 7 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
586-693 8 Warren MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.