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: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

NXX: 390

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-390 A Fenton MI SFLDMIDICA0  2550 123.NET, LLC 340      
810-390 0 Fenton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-05-01   
810-390 1 Fenton MI   2550 123.NET, LLC 340      
810-390 2 Fenton MI   2550 123.NET, LLC 340      
810-390 3 Fenton MI   2550 123.NET, LLC 340      
810-390 4 Fenton MI   2550 123.NET, LLC 340      
810-390 5 Fenton MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2012-07-13   
810-390 6 Fenton MI   2550 123.NET, LLC 340      
810-390 7 Fenton MI   2550 123.NET, LLC 340      
810-390 8 Fenton MI   2550 123.NET, LLC 340      
810-390 9 Fenton MI   2550 123.NET, LLC 340      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.