They frequently send automated, standardized text templates to Internet Service Providers (ISPs).

These lists are highly volatile, frequently break, and are usually hosted by third parties rather than HBO. 📄 2. Academic Papers on HBO

You might be looking for the research paper Research on the Entertainment Marketing Challenge of HBO on ResearchGate. It focuses on how HBO successfully promotes its programming and handles its branding challenges.

People often share plain text files named hbo.txt or iptv.txt on platforms like GitHub.