You are right - IT IS COMCAST. I think it's their evaluation robot calling to see how your service call went! They give you lousy service - and then have a lousy robot evaluation call. So funny! What a poorly run company it is! And we're stuck, aren't we.
Got call from this number at work and they hang up after one dial. Called back and no one picking up.
After that came to know that is telemarketing. Getting these type of calls recently.