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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-256 A Willis MI SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-256 0 Willis MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-256 1 Willis MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
734-256 3 Willis MI ANARMIMNX8X  3535 ACD TELECOM, INC. - MI 340      
734-256 4 Willis MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-256 5 Willis MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-256 6 Willis MI   829J PAETEC ITEL, LLC 340      
734-256 7 Willis MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-256 8 Willis MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-256 9 Willis MI SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.