AT&T is trying to woo cord-cutters with a new $39-a-month bundle that comes with broadband Internet, HBO and Amazon Prime.

The offer, good for 12 months of service, is only available online at the company's website. To qualify, customers would have to reside in an area that is reached by AT&T's U-verse fiber-optic TV and Internet service.

AT&T is getting a jump-start on rivals such as Dish Network, Verizon and Sony, which are all planning over-the-top TV services that would provide a limited bundle of networks over the Internet. Dish, which plans to begin offering its service by the end of the year, aims to use the offering as a way to lure a growing group of younger people who have never subscribed to pay-television.

Similarly, AT&T is hoping the low-priced bundle will draw people who either dropped TV service, or have never subscribed, so the company could then seek to sign-up those customers to regular, higher-priced, packages after the promotion ends. The deal also deepens the relationship between AT&T and Amazon, with AT&T already the exclusive carrier of Amazon's Fire smartphone.

AT&T's promotion offers broadband with an 18-megabit download speed, a basic TV package with local broadcast stations, HBO and the HBO Go mobile app and 12-month access to Amazon Prime, which provides free shipping at the Web retailer as well as video and music streaming. Customers would also gain access to AT&T's national Wi-Fi hot spot network.