Crown Castle expects to put 5,000 small cells on air in 2022. "We believe that what will happen is, with this agreement [with T-Mobile US] and with the Verizon agreement that we have, there is not going to be a significant change to 2022, but going into 2023 and beyond, we believe we will have a significant increase in the amount of small cells that we put on air," said Crown Castle CFO Daniel Schlanger at Citi’s AppsEconomy Virtual Conference.