Presently, the Navy flys this mission with E-6B's. The E-6 is a modified Boeing 707 packed with communication equipment.
During the 1990s the TACAMO mission was expanded so that this platform provides the strategic communications link between the the President and the U.S. nuclear triad (ballistic missile submarines, strategic bombers, and land-based ICBMs).
There are two squadrons of E-6Bs, VQ-3 and VQ-4, both headquartered in Oklahoma City, Oklahoma. Co-located with them is their administrative/maintenance wing, Strategic Communications Wing ONE, two training units, and a communications center.