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@DefinitelyJackk

DefinitelyJack @DefinitelyJackk #201756057

27 December 2016
account created (per Roblox API)
20 Aug 2026, 07:21
last measured (UTC)

Username record

@DefinitelyJackk — observed 20 August 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)

[LU] Ro-Lucha Underground#10996523
48
Chicano Style Clothing#16801236
29
The Academy of the Sith#35353742
11
[ The Jedi Enclave ]#35165252
10
Silverback Karate#35737574
5
[BDP] Seabees#5238148
3
[1MD] Armored Assault#33547153
1
[1MD] The Infantry#33273106
1
[1MD] Raiders#33273035
1

Open data

Download this user’s observed record: username history (CSV) · record (JSON)

Also a member of

Roanoke, VA#4451448 · Member
1,504,409
The US Military 1940s#4545116 · Sergeant
1,413,155
UrbanSector#6811462 · Fans
1,094,246
devGem#2776987 · Fan / Member
938,582
Dynamic Creations#5799624 · Player
546,377
Jaller's Projects#266819 · 🌾Farm Residents🌾
518,505
PLATINUM FIVE#4668709 · Member
504,269
The United States Marine Corpsᅠᅠᅠ#5655676 · [E2] Private First Class
378,929
United States Army     #4121686 · [E1] Private
373,613
M&C Game Studios#7958191 · Members
331,195
REACT Studiosᅠ#17180419 · Member
326,615
Jakarta Interactive#5177284 · JI | Members
225,566
NORTHWIND | HUB#5375519 · Fan
164,521
Unіted Statеs Navy#5000347 · [E6] Petty Officer First Class
136,386
The Noobic Stratocracy#2704934 · Noobs
132,902
The Jedi ‌Order#3378280 · Initiate
110,965
Тhe Sіth Оrdеr#9135125 · Hopeful
73,641
[VWRP] Vietnam War RP Community#2798061 · Roleplayer
73,640
South Central Chronicles#5268800 · Citizen
50,683
Polarstar Studios#5615635 · Members
40,587
Agе of Rebellion#12720249 · Unknown
29,788
ROBLOX Infantry Corps#254403 · Private [PVT]
28,349
First Galactic Εmpire ᅠ#3173863 · Citizen I
25,924
》The New Jedi Order《#11668364 · Force Sensitive
15,366
Playful#2739948 · Member
10,907
Nippon#895913 · Villagers
10,182
XJ Studios#6867395 · Fan
9,854
Quinceanera#8683819 · 🏆Guest List 🏆
8,526
Feudal Life#4793192 · Member
6,931
Βrіtіsh Αrmed Forces#2582808 · Enlisted Personnel
6,828
Imperial Order of the Rising Sun#3592554 · Shinpei
3,376
2nd Noob Divіsion#35848829 · Enlisted
3,164
Skyridge Entertainment#4702857 · Testing Noobs
2,127
Thе Imperіal Army#3867390 · Private
2,054
Jersey Blue Shores#5077504 · Roleplayer
1,694
Ferro Studios#12320034 · Customer
1,468
Union оf Soviet Socialist Republics#6324631 · Immigrant
1,099
Stormtroopеr Сorps#16463906 · Cadet
990
Thomas County, Georgia#6323805 · Resident
674
/UFC\ Ultimate Fighting Championship#6138329 · Unsigned
673
Philippine Army [TPA]#10063242 · 『PVT』 Private
513
R.W.E Roblox Wrestling#3129792 · [U] Universe
465
Fly away Studios#5954527 · Member
409
The Ascendant Sith Empire#14589714 · Tier 5 Citizen
380
Ro-Impact Wrestling#6304970 · {TNA Universe}
329
WKC - World Kickboxing Championship#5134495 · Lightweight Division
314
[VWRP] Abu Company, 1/327th, 101st Airborne#32368739 · Member
248
The Royal Navy of Roblox#808654 · Marines
248
New Californiа Republіc#33977831 · Wastelander
245
[STARSIM] The Galactic Republic#35878372 · Cadet
239
Kaiyōmizu#17227855 · よぞ物 | Yozomono
237
The Craytos Bloοdline#13353782 · Supporters
208
| Dai Nippon Teikoku |#34512077 · Conscript
190
Dai Nyappon Teikoku#12115182 · [NCO] Section Lead
175
[JP] Stаte of Jаpаn#452662141 · Japanese Citizen
172
Star Forgе Studios#15528537 · Member
136
TNF | Comanche Tribe#34976564 · Youth
135
Hong Kong 特別行政区#32773594 · Resident | 居民
132
ᅠThe New Jedi Order#16514460 · Jedi Council
110
Gryzzli's Singapore Armed Forces#17280688 · Recruit
100
香港警務處 | Hong Κong Police Force#14856167 · [學警] Recruit Police Constable
97
[CCCP] Union of Soviet Socialist Republics [CCCP]#14501784 · Distinguished Citizen of Soviet Union
94
Republic of Namibia.#33504573 · Namibian Defense Forces
90
Freecorps "Wowgner"#34060359 · Rifleman
87
SOI | Chicago, IIIinois#13887299 · Resident
76
RCC | Roblox Combat Commission#8665350 · RCC Federation Owners
73
Murnau Armaments#4554810 · project supporter
72
2nd-Battalion, 5th-Marines.#17396027 · Captain
67
徳川 | Edo Bakufu#33116632 · Kogo Ash.
60
Sαn Rαmiro County, Cαlifornia#17174001 · Community Member
59
Team Cobra | TC#6870330 · Fans
47
| State of Tacoma#15904031 · Residents
45
[E.D.F] Exolarius Defense Force#33175184 · Captain [03]
39
[CCCP] Soviet Armed Forces [CCCP]#17326762 · Private
36
TRNR Royal Marines#33544060 · Recruit
34
Guestopiα#36072409 · Guestopian Citizen
32
| 13th MEU | Ranking#33139926 · [ E2 ]
30
| 13th Marine Expeditionary Unit |#9920364 · [GCE] Ground Combat Element
30
Orduyu Hümayun#34438099 · Azab
28
Bundok Industries#12468610 · Member
26
[JO] | Jedi Order#5348476 · [LR] Force Sensitive
21
Post-Apoc 2067 Whitelist#35336709 · Community Member
19
Dai-1 Chushinbu Hoheitai#1008540125 · Non-Commissioned Officer
16
Federal Republic of Dogeland#33818627 · Immigration Service
16
Army of the Ascendant Empire#14590010 · Recruit
16
The Empire's 1st Infantry Battalion#33271508 · Battalion Soldiery
15
武田藩 | Takeda Clan#33116696 · Levied
12
】The Ascendants【#413159607 · Initiate
9
2nd Guards Artillery Division#33488022 · 462nd Guards Artillery Regiment
9
[DPRK] Democratic People’s Republic#15765830 · Staff Team
7
Brown Pride Raza#10541186 · Supporters
5
[CCCP] 10th Motor Company [CCCP]#33870114 · Radio Operator
3
[E.D.F] 2nd Infantry Regiment#33334895 · 2nd Infantry Regiment [O]
2

Membership and rank as measured from this user’s public group list.