More than 181,000 drones have been registered in the U.S. Federal Aviation Administration’s new drone registration database.

“We’re very encouraged by the numbers,” said FAA Administrator Michael Huerta at CES in Las Vegas on Wednesday, as he announced the precise total, as of that morning, of 181,061.

The number represents a big jump on the initial 45,000 registrations when the system went live on December 21, but falls well short of preholiday industry estimates of several hundred thousand drone sales during the year-end period. That either means the number of new drone sales was much lower than hoped, or a significant number of people have not yet conducted the mandatory registration.

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