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: 734 [Rate centres in NPA 734] [Dial plan for NPA 734]

NXX: 931

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-931 A Flat Rock MI   991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-931 0 Flat Rock MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
734-931 1 Flat Rock MI   145J TERRA NOVA TELECOM INC. 340   2025-07-26   
734-931 2 Flat Rock MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2007-11-17   
734-931 3 Flat Rock MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2007-12-11   
734-931 5 Flat Rock MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2009-11-16   
734-931 6 Flat Rock MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-02-22   
734-931 8 Flat Rock MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2021-07-15   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.