The New York Times has over 450,000 digital subscribers

"The New York Times wants to convert more of its casual web readers into paying subscribers. Starting in April, the company will reduce the number of free monthly stories offered to nonsubscribers to 10 from 20, a bet that clamping down on freebies will boost subscriptions and not decrease traffic, which would mean lower ad revenue.
The company also announced that a full year after erecting the paywall, it has 454,000 paying subscribers, making it one of the more successful mass publications to charge for web content. The Wall Street Journal, which started charging for its website in 1996, has 1.3 million subscribers."

Source:  AdAge, 20th March 2012