The 6-foot-1, 186-pounder although solid to the Aztecs, may take visits to Hawaii, Boise State and Nevada starting next month. A visit to TCU could also be in the works.
"I'm not sure yet, I'm supposed to find out from my dad," he said. "I'll be talking to him soon."
The Horned Frogs struck gold in California two seasons ago when they landed Santa Rosa J.C. corner Jason Verrett. The junior was recently named first-team All-Big 12 and named to the Walter Camp All-American team.
Vaughn says he doesn't know a great deal about the program, but was intrigued by TCU when they played in the Fiesta Bowl in 2009.
"I know that they've been to a BCS bowl game back-to-back years," he said. "I really started picking up on them in 2009 when they played in the Fiesta Bowl against Boise. That's when I really started getting interested in them."
The rising prospect also recalls the scene from the Rose Bowl when the Frogs battled against Wisconsin in 2010.
"I remember when we went down to Hollywood because that's where all the players go and the fans go that fly out here and I remember seeing purple and red all over the city," he said. "I remember all of that."
Despite the interest from others, Vaughn maintains that he is still committed to San Diego State. A strong relationship with the coaches and the location both weighed heavily in his decision to commit four months ago.
"I'm still solid," he said. "I liked how the atmosphere was and how the coaches were. I just like the school and the fans. You could also see yourself living there for the next four to five years."