https://www.gamespot.com/articles/call-of-duty-black-ops-4-beta-will-be-open-to-xfin/1100-6460704/

If you're an Xfinity internet customer who enjoys the occasional online deathmatch, we have some good news for you. Thanks to a special partnership between Activision and Xfinity, all Xfinity customers will be able to participate in the Private Multiplayer Beta for Call of Duty: Black Ops 4. You can get your code starting July 27; just head to this page and fill in your information. The beta will take place August 3-6 for PS4 owners. Then, between August 10-13, another beta will go live for PS4, Xbox One, and PC owners.

Those without Xfinity internet can still participate in the beta, but they'll have to pre-order Call of Duty: Black Ops 4 to get access. This is the second year in a row Xfinity customers have gotten beta access for the series. Last year, they got to participate in the beta for Call of Duty: WWII.