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.

OCN: 6120 LEVEL 3 COMMUNICATIONS, LLC - MI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
734-393 1 Lost Peninsula MI SFLDMIDNDS6  340   2005-04-28   
734-393 2 Lost Peninsula MI SFLDMIDNDS6  340   2007-03-18   
734-393 4 Lost Peninsula MI SFLDMIDNDS6  340   2002-09-04   
734-396 0 Manchester MI SFLDMIDNDS6  340   2007-09-17   
734-399 4 Maybee MI SFLDMIDNDS6  340   2003-03-22   
734-399 9 Maybee MI SFLDMIDNDS6  340   2005-05-14   
734-402 8 Livonia MI SFLDMIDNDS6  340   2008-02-01   
734-403 3 Romulus MI SFLDMIDNDS6  340   2005-02-10   
734-403 4 Romulus MI SFLDMIDNDS6  340   2003-03-22   
734-408 4 Dexter MI SFLDMIDNDS6  340   2004-02-07   
734-418 A Ann Arbor MI SFLDMIDNDS6  340      
734-418 0 Ann Arbor MI SFLDMIDNDS6  340   2005-01-02   
734-418 2 Ann Arbor MI SFLDMIDNDS6  340   2004-08-22   
734-418 3 Ann Arbor MI SFLDMIDNDS6  340   2004-08-22   
734-418 4 Ann Arbor MI SFLDMIDNDS6  340   2004-08-22   
734-418 5 Ann Arbor MI SFLDMIDNDS6  340   2004-08-22   
734-418 6 Ann Arbor MI SFLDMIDNDS6  340   2004-08-22   
734-418 7 Ann Arbor MI SFLDMIDNDS6  340   2005-01-02   
734-418 8 Ann Arbor MI SFLDMIDNDS6  340   2005-03-03   
734-436 2 Ann Arbor MI SFLDMIDNDS6  340   2014-06-14   
734-437 A Livonia MI SFLDMIDNDS6  340      
734-437 0 Livonia MI SFLDMIDNDS6  340      
734-437 2 Livonia MI SFLDMIDNDS6  340      
734-437 3 Livonia MI SFLDMIDNDS6  340      
734-437 5 Livonia MI SFLDMIDNDS6  340      
734-437 6 Livonia MI SFLDMIDNDS6  340      
734-437 7 Livonia MI SFLDMIDNDS6  340      
734-437 9 Livonia MI SFLDMIDNDS6  340      
734-441 3 Rockwood MI SFLDMIDNDS6  340   2006-10-01   
734-443 A New Boston MI SFLDMIDNDS6  340      
734-443 3 New Boston MI SFLDMIDNDS6  340      
734-446 A Plymouth MI SFLDMIDNDS6  340      
734-446 0 Plymouth MI SFLDMIDNDS6  340      
734-446 1 Plymouth MI SFLDMIDNDS6  340      
734-446 2 Plymouth MI SFLDMIDNDS6  340      
734-446 3 Plymouth MI SFLDMIDNDS6  340   2005-03-11   
734-446 4 Plymouth MI SFLDMIDNDS6  340      
734-446 5 Plymouth MI SFLDMIDNDS6  340      
734-446 6 Plymouth MI SFLDMIDNDS6  340      
734-446 7 Plymouth MI SFLDMIDNDS6  340      
734-446 8 Plymouth MI SFLDMIDNDS6  340      
734-447 3 Wayne MI SFLDMIDNDS6  340   2005-12-16   
734-447 5 Wayne MI SFLDMIDNDS6  340   2005-12-16   
734-469 3 Livonia MI SFLDMIDNDS6  340   2008-02-12   
734-469 5 Livonia MI SFLDMIDNDS6  340   2008-02-12   
734-471 A Rockwood MI SFLDMIDNDS6  340      
734-471 1 Rockwood MI SFLDMIDNDS6  340      
734-492 4 Ann Arbor MI SFLDMIDNDS6  340   2020-01-05   
734-493 A Trenton MI SFLDMIDNDS6  340      
734-494 A Romulus MI SFLDMIDNDS6  340      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.