I received a call and was told to use the number as a call back but it only has a busy signal. Is this spam? [Edited]

Concern moved here to the Customer Service help section for greater exposure to Comcast corporate employees (The Digital Care Team) for assistance.

Good afternoon @user_ikjw4d, and thanks for reporting that number to us. It does look like a spam call, so I would go ahead and mark it as spam/block it. Please let us know if you need anything else.