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: 493

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-493 A Trenton MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-493 0 Trenton MI   145J TERRA NOVA TELECOM INC. 340   2025-04-09   
734-493 2 Trenton MI LIVNMIUX3MD  5562 METROPCS, INC. 340   2007-01-30   
734-493 3 Trenton MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2005-04-10   
734-493 5 Trenton MI ANARMIMNX8X  3535 ACD TELECOM, INC. - MI 340   2005-05-02   
734-493 6 Trenton MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2019-07-19   
734-493 7 Trenton MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-08-09   
734-493 8 Trenton MI SFLDMIMK5MD  939H COMMIO, LLC 340   2021-10-14   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.