470.550 Driver Bus Lines
471.000 Mees Bus Lines
474.325 Crown Coaches
487.075 Croydon Bus Service
471.050 Martyrs Bus Lines
472.625 Quinces Scenic Crusiers
485.975 Sky Bus Coaches
509.175 Sita Coaches
507.375 Melbourne Bus Link
509.325 Peninsula?, Cranbourne Transit, Cardina Tranist
509.250 Grendas
490.625 National Bus Company
508.650 Ventura
509.050 Dysons
508.350 Portsea?
507.050 Sky Bus
508.725 Moorabbin Transit
507.750 Keffords Group 

Tram Frequencies

Thanks to Gareth for providing information on the Tram Frequencies 

Train Frequencies can be found at the following websites:

Rail Scan Australia
Victorian Railway Radio Frequencies