The network will provide 16 hours of programming weekly, with weekend shows and weekday reports during morning and afternoon drive times.
The weekend programming will concentrate on live news, interviews, game reports and magazine-style programming, ESPN said.
The network will be called "ESPN Radio Network." ESPN said 25 stations in the top 50 markets already are committed to the network and officials hope to have 200 by January.
The new network will be jointly managed by Shelby Whitfield, executive producer of ABC Radio Sports, and John A. Walsh, executive editor of ESPN.
Both networks are subsidiaries of Capital Cities-ABC Inc.