the 2003 CAN-SPAM Act required the Fcc to issue rules to protect wireless subscribers from unwanted mobile service commercial messages, and provides that consumers can list their cell phone numbers in the national Do Not Call Registry. in August 2004, the FCC proposed regulations, most of which went into effect in October 2004.the FCC prohibits sending wireless commercial e-mail messages unless the individual addressee has given the sender express prior authorization. The FCC also created a publicly available list of wireless domain names list used for mobile service messaging so that senders of commercial mail could more easily determine which addresses are directed at mobile services. In 2009 , the law was used to force three firms responsible for the infamous "car warranty" scam cell [hone calls to cease and pay restitution to consumers.