Find the series number based on Apple ID

YX2024SF wrote:

My MacBook Air is stolen, I would like to find the series number of the MacBook Air besed on my iPhone and Apple ID.

Yes, you can see what devices are connected to your iCloud ID from your iPhone:

Check your Apple ID device list to find where you're signed in - Apple Support

I just checked and it shows the serial number of my MBA when I check it from my iPhone.

For additional information, see this article:

If your Mac is lost or stolen - Apple Support

If your device is stolen, immediately turn on Lost mode at icloud.com/find. Lost Mode will ensure your device and private information is protected while also providing a way for others to return the device to you.

Report your device stolen to your local law enforcement, they might ask you to provide your device serial number, by doing so here: Find the serial number or IMEI on your iPhone, iPad, or iPod touch - Apple Support

For more information: If your iPhone or iPad is lost or stolen - Apple Support