First, it is proper Netiquette to keep your phone number off the Internet. So, don’t give out your phone number. Thus, unreasonable.
Phone Number Netiquette Students
Given, websites ask for telephone numbers. It follows, for marketing or other promotional reasons. And so, students are exempt.
Students Phone Number
Next, no good reason to put telephone numbers on the web. Usually for marketing purposes. Simply put, sharing a telephone number by a student online is out of line.
Phone Number Netiquette
Keep telephone numbers private because education does not require telephone contact.