Yes, they're on the fleetnet trunking system now.

If you do a google search you'll find them.

Mind you there's only one website that has all the information your
looking for so I suggest finding that one.

Doug Mitton wrote:
Last week the local Eastern Ontario EMT/Ambulance services (Brockville
and Kingston area) switched to a new frequency. They were on 150.100
Mhz and they disappeared in 1 day.

Does anyone know of any references to what they may have switched to
and any links to scanning them?

Thanks in advance.