That's what I remember from last year, did a lazy search and couldn't find it.
Looks like Ohio State was #1 in the first rankings at the end of November last year. Only reason I was able to find it is because I remember how stupid it looked at the time to have OSU #1.
Ohio State is No. 1 in the first NCAA NET college basketball rankings
The first NET ranking of the season is here, and with it comes the first No. 1 team in the history of the new ranking system — Ohio State.
www.ncaa.com