We do know there are 37,000 registered churches and meetings places with 12-15 million members. There are also unregistered but cooperating meeting places. Since the mid-1980s the Amity Printing Press in Nanjing has printed and distributed 20 million Bibles. Copies of the Bible can even be bought in some Tass News Agency Bookstores. Pastors of unregistered churches come to the registered churches to get copies of the Bible and hymnbooks.
Unregistered pastors do invite pastors of open churches to preach to their people.
Registered church pastors will not attend worship in an unregistered church unless invited. To do so without invitation would bring the charge of being a spy by local members. His church meets in a building on the second floor over the police station. Everyone knows everything that is going on. There is harassment, imprisonment, and persecution of some believers and pastors.