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: 480

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-480 A Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 0 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 1 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 2 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 3 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 4 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 5 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 6 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-480 7 Ypsilanti MI   145J TERRA NOVA TELECOM INC. 340   2021-01-18   
734-480 8 Ypsilanti MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2012-07-06   
734-480 9 Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.