Ahh there it is, thank you GTR. I saw "City of New York" in the search and assumed it was just another listing for the NYPD Tac channel also licensed on that freq.
Very surprised to see that the transmit power is only 2 watts
ULS License - Public Safety Pool, Conventional License - WPKY646 - CITY OF NEW YORK - Frequencies Summary
Also, the station class is listed as MO which of course is mobile. Well, I am hearing a repeater. And I am 60 miles away. 2 watts may be a little bit of a stretch. But non stop action for sure.
A little info on the facility:
The New York City Department of Correction (DOC) provides for the care, custody, and control of persons accused of crimes or convicted and sentenced to one year or less of jail time.
The Department manages 12 inmate facilities, 9 of which are located on Rikers Island. In addition, the Department operates two hospital Prison Wards (Bellevue and Elmhurst hospitals) and court holding facilities in each borough.