Comcast and Insight are getting together.

Under the agreement, Philadelphia-based Comcast, the nation’s largest cable operator by subscribers, will own the cable systems serving roughly 980,000 video customers and 300,000 high-speed Internet subscribers in parts of Illinois and Indiana. Insight will keep 964,000 video customers and 308,000 high-speed Internet customers in Kentucky and Ohio, as well as in one city in Indiana.

As part of the deal, Comcast and Insight will be responsible for $1.33 billion and $1.26 billion of the partnership debt, respectively.

Comcast inherited its stake in Insight from its acquisition of AT&T Broadband. Analysts expected that Comcast would unwind this partnership; the company has been ending partnerships with Time Warner Cable, Adelphia Communications and Susquehanna Communications. But they say this agreement is particularly noteworthy because it gives Comcast very high-quality subscribers as well as assets in an area where the company already provides cable services.