Ameobi was named in the preliminary squad by coach Stephen Keshi.
But it was later announced by Newcastle boss Alan Pardew that the 31-year-old would not travel to South Africa.
Nigeria's media officer Ben Alaiya: "Shola's refusal to answer calls gave Keshi no other option than to allow him to concentrate on his club,.
"The coach and team secretary made several attempts to reach Shola but there was no answer. The coach waited to hear back from him but a call never came.
"A decision on the next move will be made at the appropriate time."
Ameobi made his debut for Nigeria last November in the friendly against Venezuela and Keshi was hopeful the former England under-21 international would be part of his squad for the competition, which kicks off on 19 January.
But he has now become only the second England-based player after Danny Shittu to snub the Nations Cup in order to play for his club.
Source: Newcastle United Mad
Source: FOOTYMAD
