On the same day Peyton Manning officially left the only professional home he's ever had, his representatives were contacted by 12 of the NFL's 32 clubs, multiple sources told ESPN NFL Insider Adam Schefter.

Sources told ESPN senior NFL analyst Chris Mortensen that both the Seattle Seahawks and Arizona Cardinals were among the teams to reach out to Manning's representatives on Wednesday.

The Kansas City Chiefs and Denver Broncos have also spoken to the four-time MVP's representatives, league sources told Schefter.

The Miami Dolphins and Washington Redskins also reached out to Manning's camp, league sources told Schefter. And the Tennessee Titans and New York Jets have also been rumored as a possible destinations. Manning's former offensive coordinator in Indianapolis, Tom Moore, worked for the Jets as a consultant last season.

The Indianapolis Colts officially released Manning on Wednesday and he will become a free agent and be eligible to negotiate and sign with teams as soon as he clears waivers Thursday. The 14-year veteran does not need to wait until the free-agent period that begins next Tuesday, and he acknowledged his agent already was taking calls.

"I have no idea who wants me, what team wants me, how this process works," Manning told a group of reporters in South Florida, where he has a home and flew after the news conference. "I don't know if it's like college recruiting where you go take visits. I mean, this is all so new to me."

Sources told Mortensen on Tuesday that Manning expects to have significant dialogue with interested teams before he makes a decision on where to resume his career and will likely work out for a few select teams once he studies his opportunities.

Manning's camp wants to make a decision within the next week. Manning would prefer to stay in the AFC but is open to playing in the NFC, league sources told Schefter.

Manning, however, denied that he personally had talked with any team as of Wednesday afternoon.

"I literally have not had one conversation with anyone about these teams. It's been so hard for me trying to figure out some closure with my situation with the Colts," Manning said in South Florida. "I haven't thought about teams, and I don't know who is interested. I really don't."

Manning, who will be 36 later this month, became a free agent after the Colts decided not to pick up a $28 million bonus he was due because of concerns they had over his readiness to play in the NFL again.

He missed the entire 2011 season after having his third neck surgery in 19 months, a fusion of two vertebrae. But Dr. Robert Watkins, who performed the single-level cervical fusion, has stated publicly that he has cleared Manning to resume his playing career and the damaged nerves have regenerated to the point where Manning has thrown the ball with greater distance and velocity in the past few weeks.