Enrollment is officially open for the city's pre-K program.

The Mayor's Office of Education announced Thursday that 61 providers, operating 78 sites across Philadelphia, will receive $10.2 million to enroll more 3- and 4-year-olds in pre-K.

"As of this moment, families can now call and apply for free quality pre-K, and I believe that's just an awesome change," Mayor Kenney said at a North Philadelphia YMCA, one of the sites slated to receive city funds.

Interest in the program, dubbed PHLpreK, was high, with 85 providers, operating in 135 sites, applying over the summer.

On average, each provider will receive 20 to 30 slots, totaling 2,000 new city-funded pre-K seats in the first year.