I lost my phone

If you had Find My on, see here - If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Otherwise, these are your only options - If Find My iPhone or Find My iPad isn't enabled on your missing device - Apple Support

No

Only you can track your phone

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

You can see the location of your phone if you enabled Find My on the phone, the phone is powered on and the phone has an Internet connection.

We cannot see your phone at all.