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: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 225

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-225 A Howell MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-225 0 Howell MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
517-225 1 Howell MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
517-225 2 Howell MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
517-225 3 Howell MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
517-225 4 Howell MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
517-225 5 Howell MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
517-225 6 Howell MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
517-225 7 Howell MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-225 8 Howell MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-225 9 Howell MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.