"The Academy has spoken to Dylan's agent and his tour manager," the Academy's chancellor Odd Zschiedrich told AFP.
But as yet they have not spoken directly to Dylan himself, he said.
"It's happened several times -- even in modern times -- that we haven't been able to speak to the laureate immediately," Zschiedrich said.
Dylan's silence could prove embarrassing for the Academy, which has faced some criticism for its decision to award the prize to a songwriter for the first time -- although reactions from the literary world have been mostly positive.
The new poet laureate of rock'n'roll played to a packed house in Las Vegas on Thursday night, hours after seeing off favourites including Britain's Salman Rushdie to become the first American to win the literature Nobel since Toni Morrison in 1993.