Got three calls from this number, Caller ID showed UNKNOWN NAME on one phone, on the other it showed UNAVAILABLE NAME. Others posted here state it's a political survey. Okay, good to know, I won't answer it.
After checking this, I blocked the number. I bought a call blocker from Amazon about 8 months ago, and it has been a life saver for us. Many times the number tries to call us again, the phone rings once, and then is automatically blocked.