DFITL (DSL over Fiber in the Loop) is the latest voice and data service utilizing FTTC (Fiber to the Curb). DFITL uses fiber to the neighborhood, existing copper to the home so it does not require special wiring. Since DFITL data service uses a DSL signal it requires a modem to connect to the internet.

Very Important Service Note:
AT&T is now limiting DFITL customers to the 1.5Mbps service tier. Older customers that currently have 3.0 service are being grandfathered, but all new (or returning) customers are limited to 1.5Mbps.