NO PURCHASE NECESSARY OR TEXT MESSAGING NECESSARY TO ENTER OR WIN. Void where prohibited. Available only through participating carriers. Message and Data Rates May Apply. Void where prohibited. Legal residents of the 48 contiguous US or DC who are 18 or older. Begins November 21, 2017 at 10:00 A.M. ET and ends January 6, 2018 at 11:59 P.M. ET. Limit 1 entry per person. To enter, and for Official Rules, odds, and prize details, visit nbc.com/superbowlrules. Sponsors: NBC Sports Group, NBC Entertainment, and NBCUniversal Media, LLC.