What is the frequency of VHF APRS?

Could you please clarify for me what exactly is the frequency range for VHF APRS? I understand that it's a form of communication used in aviation, but I'm unsure about the specific frequencies it operates within. Is there a standard frequency range that VHF APRS adheres to, or does it vary depending on the region or the type of aircraft being used? Your expertise in this field would be greatly appreciated in helping me understand this topic better.