Did i get a legitimate Comcast Xfinity call? [Edit]

I would like to know if [Edited: "possible malicious number"] is a legitimate Comcast Xfinity number? The phone call I had with the representative about canceling my service was normal but I received emails about my account afterwards that didn't indicate I was trying to cancel my service but rather my account was being altered by someone in other ways. I just want an Xfinity representative to confirm. Thanks.