New York City subpoenaed Airbnb for the data it has for about 20,000 listings to see if hosts are in compliance with laws on short-term rentals, CNN reports. The city issued a similar subpoena to HomeAway.

The subpoenas are seeking details on hosts’ addresses, names, contact information, volume of bookings and the amount of money they have earned through hosting. It is illegal in the city to list entire apartments and similar accommodations for periods of fewer than 30 days.