From Electronic Frontier Foundation:
We just received new information today about drone flights in the United States, including extensive details about the specific drone models some entities are flying, where they fly, how frequently they fly, and how long they stay in the air. The 125 drone certificates and accompanying documents the FAA released today total thousands of pages and were released in response to EFF’s Freedom of Information Act lawsuit, which has already uncovered the list of all entities licensed to fly domestic drones.
The 18 entities represented in the files include police departments from Seattle, Washington to North Little Rock, Arkansas; about 10 public colleges and universities; a few federal agencies, including the USDA and the Department of Energy—Idaho National Lab; and other entities like the City of Herrington, Kansas and the Mississippi Department of Marine Resources. For every entity, the files include the actual Certificate of Authorization (COA) application information submitted to the FAA (for each entity, that file is called "COA.xls"), and many other supporting records. The files go back several years and include COAs for every year that the entity has had drones. For some entities this is as early as 2004.