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: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-412 A Ann Arbor MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340      
734-412 0 Ann Arbor MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2019-01-21   
734-412 1 Ann Arbor MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2019-01-21   
734-412 2 Ann Arbor MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2019-01-21   
734-412 3 Ann Arbor MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340   2019-01-21   
734-412 4 Ann Arbor MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-03-30   
734-412 5 Ann Arbor MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2019-04-17   
734-412 6 Ann Arbor MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
734-412 7 Ann Arbor MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
734-412 8 Ann Arbor MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-06-26   
734-412 9 Ann Arbor MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2019-10-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.