United States Coast Guard HF Frequencies

2182, 2670, 3253, 4134/4426 (ship/shore), 5320, 5696*, 6200/6501 (ship/shore),
8240/8764 (ship/shore), 8980, 8983*, 11202, 12242/13089 (ship/shore)

NOTES:
8983 is very active during daytime.
8980 used for phone patches to free up 8983.
5696 is very active during nighttime.