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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
586-372 A Romeo MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
586-372 0 Romeo MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-10-10   
586-372 1 Romeo MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2005-01-22   
586-372 2 Romeo MI DTRTMIBHMMD  0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 340   2004-03-03   
586-372 3 Romeo MI SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340   2006-09-21   
586-372 4 Romeo MI DTRTMIBHMMD  8685 US XCHANGE OF MICHIGAN LLC DBA CHOICE ONE COMM MI 340   2009-10-23   
586-372 5 Romeo MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-01-22   
586-372 6 Romeo MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-02-22   
586-372 7 Romeo MI DTRTMIBASMD  516C AT&T CORP. 340   2006-06-30   
586-372 8 Romeo MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
586-372 9 Romeo MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2011-06-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.