http://www.globalsecurity.org/military/ops/where.htm/
According to globalsecurity.org, only Washington (Gulf), Stennis (WestPac) and Reagan are deployed. The Reagan deployment is actually repositioning cruise moving Reagan from Norfolk to her new port in San Diego.
Truman, Vinson, Kitty Hawk and Kennedy are in training. Not unusual for them to go out for a few days at a time to do so.
Eisenhower, T.R Roosevelt and Nimitz are in maintenance. Lincoln and Enterprise are apparently part of the surge exercise before starting maintenance periods.