Those were all that I originally found when setting up TTD, I was really only interested in finding my locals but practiced on the others.
Normally yes, county FD simulcast is available over CoMIRS via an analog -> P25 patch at the state level. However a few weeks ago all patched county UHF talkgroups with the exception of one were switched to encrypted. In addition most talkgroups were flipped so when I see an encrypted PD P25 call my analog scanner is seeing an FD call. Unknown how long the patches will be like this but they should go back to clear comms as we get closer to county agencies migrating to CoMIRS.