New prefix number for the row in Reno which includes circus circus , silver legacy , eldorado casinos . They all share the same number which after the merger is 117. Also I asked one of the rewards people and found out that 164 Harrah's Hossier racing and casino in Anderson ,Indiana and 123 is a casino they say it's closed in Blackhawk , Colorado, 169 is eldorado gaming scioto downs in Columbus, Ohio. If anyone has anymore prefix to add please let me know