Zillow i'm certain. I sent a message online giving them notice a listing was showing up on craiglist as well for much lower price. Hope this is the first and last call i receive.
This scam was encountered on Trulia with this number on caller ID... it is obviously a scam... they called within ten minutes of requesting info on a house that I knew was sold and closed by me in Falcon, Colorado.... It appears that these people are manipulating Trulia and Zillow ads somehow as the ad says it was updated 03/2016 ??? The accuracy of Zillow and Trulia is so bad that the Feds should shut them down to protect the buying public !!!