"Subscriber numbers" refers to the total count of people who have signed up or subscribed for a particular product or service. It indicates how many individuals or households are actively using or paying for that specific offering. Full definition
Moreover, during the past decade or more I can't think of any existing loose - leaf service that has grown in subscriber numbers. (slaw.ca)
If subscription numbers are in decline however profits «remain significant with prices rising as subscriber numbers drop» how much of this cost is passed on to clients? (slaw.ca)
It's worth remembering, though, that while the total subscriber number sits somewhere north of 130 million users, approximately 60 million are paying listeners. (news.crunchbase.com)