meeting id specifications

hi I want to write a regex for meeting id. What is the specifications of meeting id and also zpk?

Is meeting id always a string of 9 digits?

What is the use case for this?

If using the meeting create API you will get the Meeting ID (number) back in the response.

I believe meeting ID can be 9-11 numeric value in length. Not sure on ZPK

I want to test create meeting function. I want to check with regex if I have a valid meeting ID.

 

I need the exact specification for meeting ID and zpk for that.