I'd like to thank Allan Alsleben for providing permission to post this article.
1st Yokosuka 9/20-'41 Formed at Yokosuka, assigned to Combined Fleet 1/10-'42 Air Drop on Menado. (Heavy casualties) 5/ 8-'42 "S" Operation, Occupation of the Lesser Sunda's 5/16-'42 Returned to Surabaya 5/20-'42 Reassigned to the 2nd Southern Expeditionary Fleet 10/10-'42 Returned to Yokosuka Naval District and reassigned to Combined Fleet 6/ 1-'44 At Saipan 11/11-'44 Deactivated 2nd Yokosuka 10/15-'41 Formed at Yokosuka, assigned to Combined Fleet 12/15-'41 Landed at Miri, Brunei 12/24-'41 Landed at Kuching, Sawarak 3/10-'42 Deactivated, Became 1st Guard Unit, 10th Special Base Force 6/10-'43 Reactivated at Truk and assigned to 4th Fleet, Attached. Remained at Truk throughout the war. 3rd Yokosuka 11/20-'41 Formed at Yokosuka, assigned to Combined Fleet 12/10-'41 As part of the 1st Surprise Raiding Group, Landed at Aparri, Luzon. 12/10-'41 As part of the 3rd Surprise Raiding Group, Landed a Detachment at Calayan Island, Luzon Strait. 2/20-'42 Air Drop on Timor 5/20-'42 Reassignd to 2nd Southern Expeditionary Fleet 7/29-'42 "T" Operation, landed elements on Bakar, Kai and Tanimbar Islands, Banda Sea 8/ 5-'42 Returned to Yokosuka Naval District 11/11-'44 Deactivated at Yokosuka 4th Yokosuka Formed before the outbreak of hostilities, assigned to 3rd China Area Fleet at Hainan Naval Guard District. Remained there throughout the war. 5th Yokosuka 5/ 1-'42 Formed at Yokosuka and assigned to Combined Fleet, 2d Combined SNLF 7/ 1-'42 2nd Combined Disbanded 7/ 1-'42 Reassigned to 8th Fleet 8/16-'42 Lifted to Guadalcanal (Detachment) 11/ 1-'42 At Buna, Papua 2/15-'43 Deactivated at Lae, Papua. Absorbed into an unidentified Guard Unit 6th Yokosuka 8/15-'42 Formed at Yokosuka, assigned to the 8th Fleet at Rabaul 8/25-'42 Reassigned to 4th Fleet, Attached at Truk 9/15-'42 To Betio, Tarawa and Makin Atolls 2/15-'43 Deactivated, Became 67th Guard Unit, 3rd Spl. Base Force at Betio, Tarawa 7th Yokosuka 11/20'42 Formed at Yokosuka, assigned to Combined Fleet as a unit of the 8th Combined 12/24-'42 Reassigned to 8th Fleet, Attached 6/30-'43 On Kolumbangara 12/ 1-'43 8th Combined SNLF disbanded, and reassigned to 8th Fleet, 14th Base Force 12/ 5-'43 Deactivated at Kavieng, New Britain. 8th Yokosuka 1/20-'45 Formed at Singapore and assigned to the SouthWest Area Fleet No further information. Remained in the area until the end of hostilities