AT&T will offer mobile communications services to its customers via a new distributed antenna system (DAS) installed by Mobilitie at Churchill Downs Racetrack in Louisville, Ky. The DAS was designed to serve crowds that attend thoroughbred horse racing and other events at the track. Coverage includes the clubhouse, grandstand, Jockey Club Suites, all premium seating areas and the track's infield. Though AT&T will be the first carrier to connect to the neutral-host DAS network, additional carriers are expected to connect later this year, said Mobilitie. "We are pleased to have also collaborated with AT&T to ensure the network is complete and ready to serve their subscribers in time for the 2013 Kentucky Derby," said Christos Karmis, president of Mobilitie. Crowds at the racetrack have exceeded 165,000 on Kentucky Derby Day, according to Mobilitie. For more on the Churchill Downs DAS deployment, see this release.