This means that SpaceX should be going commercial with Starlink service in September of this year.
SpaceX called the last launch (June 13) SL-9.
SpaceX has scheduled SL-10 on June 23.
SL-11 mission is scheduled for July.
The twelfth mission is not scheduled yet. There are several other customer missions. The SL-12 or SL-13 mission will likely be what is needed to complete a system for commercial activation. They will likely need to sort out some beta testing before they go with the commercialization activities.