Following is the table of special task organization
visual call signs listed in ACP 129.
Commander Task Force No.
*Commander Task Group No.
*Commander Task Unit No.
*Commander Task Element No.
Task Force No.
*Task Group No.
*Task Unit No.
*Task Element No.
* Within own task organization
6p4p5 . . . Task Force 45
8p3 . . . . . . Task Unit 3 (within own Task Group)
9p2D . . . . Destroyers of Task Element 2 (within
own Task Unit)
3p6. . . . . . Commander Task Element 6 (within
own Task Unit)
The special task organization call signs in the
previous list have been extended to intra-USN
messages transmitted by flashing light.
CTF 50. . . . . Zero p5p0
CTG 50.3 . . . . . One p3
COMSIXTHFLT. . . . . Four p6
TF 50. . . . . Six p5p0
TG 50.3.5 . . . . . Seven p5
CONVOY VISUAL CALL SIGNS.Convoy
visual call signs are contained in ATP 2, volume 2, or
appropriate national or regional defense organization
GOVERNMENT SIGNAL STATIONS.On
shore or on lightships, use the letter G as the visual
call sign to call any or all the senior men-of-war.
SHORE SIGNAL STATION.In compliance with
international procedure, the letter K (with complement if
desired) is used to call or address shore stations.
MILITARY SIGNAL STATION.The
following assignments are reserved for the signal
Commander in chief
Harbor entrance control post/port war
signal station (HECP/PWSS) (main
HECP/PWSS (secondary auxiliary signal
Senior officr present afloat (SOPA)
SOPA administrative (when
Flag officer, second in command
Commander naval district
Commander naval base
Commander naval operating
b a s e
Commander naval shipyard
Commander sea frontier
Commander air station
Commander amphibious base
Commander section base
Commander submarine base
Degaussing station No. 1
Degaussing station No. 2
Degaussing station No. 3
Degaussing station No. 4
Deperming station No. 1
Deperming station No. 2
Reserved for local assignment by
competent authority to shore signal
stations not covered herein.