Who called from 6512375260

I got this too.  I called it back and it doesn't ring, but does eventually go to a Verizon canned message that says the number is not taking calls.

I just got a call from this number and they hung up when I said my name.

I called the number back and it's for SQM Group, a survey call center. If you call the number back, you can type in your number to be added to their "Do Not Call" list.

Called, and nothing but dead air on the line.   Call back says it's still SQM group and gives you the chance to be added to the do not call list.

SQM Group is not a telemarketer. They collect feedback for other companies that you (or whomever used your phone) may have called for something like technical support, customer service, etc. You can see what they're all about on their website: www.sqmgroup.com

Like the other people here said, it does give you the option to opt out.