155.1750
FCC Callsign: KMJ909 (AMBULANCE ASSOCIATES OF CANTON INCORPORATED)
correct PL is 218.1
Did you actually verify by listening that the activity you heard was this particular agency? This could have been any number of licensed agencies in Northeast Ohio.
I ask because from my location I can hear 4 different agencies on 155.175.
I also hear multiple agencies 158.79, including:
158.79000 155.19000 173.8 PL KNBJ651 Youngstown PD Ch. 2
So, if you are just scanning and hearing new things, you might want to look them up in the database as they very well could be agencies in surrounding counties that you happen to be picking up, rather than the agency licensed in your county for that frequency.
Mike