There is no universal number of accounts that can be used with one proxy.
The appropriate setup depends on the platform’s rules, your application, traffic volume, account permissions, and the connection limit included with your proxy plan.
Check the Concurrency (threads) value in your Proxy-Cheap dashboard to see how many simultaneous connections your proxy can handle. One browser page or automation task can open several connections at once.
Use proxies only in ways permitted by the websites and platforms you access. A proxy does not guarantee that a website will accept a connection or allow a particular account setup.