fishhook @GustavKoppenhausen #128428404
21 May 2016
account created (per Roblox API)
11 Sept 2026, 15:20
last measured (UTC)
Username record
@GustavKoppenhausen — observed 11 September 2026
Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.
Groups owned (as measured)
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Also a member of
Pilot Training Club#2794513 · Fighter Pilots
3,865,923Alpine Ascents#4306874 · Climber
1,636,914United States Army #3108077 · [E1] Private (Basic Combat Training)
1,430,110GoPro Expedition Team#2961381 · New Climbers
983,667United States Military 1960s ᅠ ᅠ#3454445 · E1
960,360United States Secret Serviceᅠᅠᅠ#5856978 · American Citizen
633,978UnᎥted States Marine Corps#5570997 · [E2] Private First Class
384,988ωorld ϵxpeditions#2963992 · Climber
225,954Unitеd States Air Force#6760741 · [E1] Airman Basic
225,199Military Roleplay -QUSM-#34683777 · [E-1] Private
183,602State of Firestone#2803360 · Tourist
160,146Robloxian Mountaineering#2710984 · Climber
119,379The Unitеd Stаtеs Army#5067722 · Private
67,672Teutonnia#15294045 · Serviceperson
48,358United States Marine Corpsᅠᅠᅠᅠᅠᅠ#5308000 · [E2] Private First Class
25,820Tеutonnic Army#15822489 · Conscript
17,513Wizardry Community#2676388 · Fan
12,060UK | The British Armed Forces#3898368 · Basic Training
6,982The British School of Witchcraft And Wizardry#2666710 · Graduates
3,868Stormtroοper Corps#6779736 · Cadet
3,704The Revolutionary Red Army of Korea#6025263 · Conscript
2,438UK | The Falkland Islands#6842033 · Immigrants
1,822Denmark [DNK]#2772664 · Danish Citizen
1,082Imperial Army of the Regime#5321989 · Basic Training
374UK | Falkland Islands Defence Force#8444759 · Recruit
310Zustenian Republic#34828058 · Citizen
264Revolutionary Zustenian Army#34828182 · Conscript
94MMC | Modern Military Community#4680075 · Supporters
71WW2 Community War System#5195456 · Community member
55Octus Corporation#4916299 · 〘L〙Private
36Imperial Monarchist League of the Regime#6234824 · League Supporter
20Membership and rank as measured from this user’s public group list.