I've been getting the calls as well, haven't ben picking up though. I get them twice daily, if not 3 times now.

These people are Scammers not just spammers. Just spoke with comcast and they quoted:

"Comcast has 1-800-9346489 and if Comcast is the one calling you, it will show that it is from Comcast."

This is not Comcast...  I would suggest reporting it to Comcast if you have a few minutes. Mostly because it would be helpful for other people to raise the issue to prevent others from falling for it.

I've gotten calls from this number for the past week at all hours. I do have Comcast but have never picked up so can't confirm the caller

So strange....they've called twice. Once yesterday, once today.
How did these spammers get our numbers?

I don't have comcast.

They've called me 7 times in the past week. I picked up once and they hung up.

Comcast though called again after I told them no desire upgrade

This number tried calling me twice with no voicemail, and I finally picked up the third time. Claimed to be from Comcast and knew my name and which Comcast services I was subscribed to. Said he wanted to try and save me some money. I've heard of scams where people calling claim to be from Comcast before, so I hung up. May have been legit, but I didn't want to risk it.

Get calls from this number 2-3 times a day...no vmail and no caller location available...most likely SPAM

Got a call from this number today, Dec 17. They also called on Dec 14. No Voicemail left.

no idea who this was, called me twice today - no vmails