"They called on Friday, left a message and talked to my dad," Williams said Wednesday while participating at the NBPA Top 100 Camp.
It was a phone call that caught Williams by surprise.
"That was a shock to me," he said. "North Carolina's the highest level of basketball. When they called me, I was happy; I was shocked.
With Williams only a few hours away at the NBA-sponsored event, the UNC coaches were interested in bringing him down for a Chapel Hill tour.
"They tried to get me to visit, but I've got to go back home - I've got stuff I've got to do with my family," he said.
Instead, Williams' family is eying the end of the summer for a possible visit date to the Tar Heel campus.
"I'm going to try to do it in August when everything is winding down," he said.
For now, the 2009 standout has a large group of schools that comprise his early list.
"I've got North Carolina, Texas, Arkansas, Baylor, Texas A&M, Oklahoma, Memphis, Illinois, Tennessee … it's a long list," said Williams, who grew up in Pine Bluff, Ark. before moving to Texas in the sixth grade.
Williams' NBPA performance thus far has centered on what he does best – hit jumpshots. Or, as he put it: "Shooting is what I do."
He has shown at the camp the ability to hit everything from the mid-range pull-up to a spot-up or off-screen three-pointer. With that in mind, his focus for improvement is on other areas of his game.
"I shoot it real well, but I'm trying to work on ball handling to become a two guard," Williams said. "And I'm trying to get bigger and stronger."