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@KarJack21

@KarJack21 #861975039

16 November 2018
account created (per Roblox API)
19 Aug 2026, 01:49
last measured (UTC)

Username record

@KarJack21 — observed 19 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)

Open data

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

Also a member of

Nosniy Games#3461453 · Fan
59,404,855
Mukbang Corner#494523617 · Muncher
32,697,573
Scriptbloxian Studios#4705120 · Legend
30,031,865
BIG Games Pets#3959677 · Fan
29,163,685
No More Flops#1041977165 · Member
23,481,194
Johnny Lava#876852426 · Member
19,396,112
Chillz Studios#2782840 · 🌟Royal Member🌟
18,710,396
Pick a Door!#1112558765 · Member
16,107,772
braxworks#5268948 · Supporter
13,456,524
BIG Games™#2703304 · Fan
11,253,525
Shiny Pixels#9152522 · Pixel
9,817,451
Car Crushers Community#2726951 · Skilled Crusher
8,648,871
club XOX#8327387 · Member
8,417,014
Low Effort Studios.#16403616 · Yeeter
7,392,589
REAL_SPEEDSTERS#177656123 · Runner🏃‍♂️
6,814,528
Suprise Studios!#34408811 · Member
6,314,302
buzzword games#405191853 · Member
5,708,766
Welcome to Bloxburg: Fan Club#2910593 · Bloxburgers
4,939,216
Forsaken Dev Team#33548380 · Member
4,618,425
The MonkeyMan Fan Club#14765325 · Member
4,558,474
Mega LOL Games#17101832 · Fans
4,342,539
SimForge#32027104 · Fan
4,298,752
Dawn Digital#460048752 · Member
4,295,722
ChainLemonade Studios#5916008 · Lemon
4,264,436
Tetra Games#4843918 · Fan
4,195,675
Breakfast House!#13191027 · Staff Member
4,122,661
Polnareff Gaga Gang#975281250 · Member
3,802,067
VGS Entertainment#831807984 · Member
3,787,529
Badimo#3059674 · Member
3,515,139
US Simulators#10741807 · Member
3,337,276
Shark Fin Studios LLC#3751488 · Sharkie
2,996,522
XiaoChen Simulator#13780521 · Fan
2,993,991
Brainrotmaxxing#899848422 · Member
2,833,413
Ksieny#6712002 · Member
2,809,416
The Shrimp Game#12422265 · Player
2,660,777
BIG PLAY#10610262 · Member
2,617,879
best tycoons studio#33447943 · Owner
2,468,003
FGTeeV (BebabaleepBopping)#6882266 · Member
2,402,231
Colorfuel Studios#6206549 · Supporter |🏆
2,386,509
TBlox Studios#6039961 · Player
2,251,071
Lionly Studios#8296978 · ⭐ Supporter
2,204,604
Strawberreh Squad#432538536 · Member
2,081,101
Bloxora Company#34830573 · Customer
1,999,964
Ability Wars#13233520 · Member
1,979,651
LightGaming!#6887275 · Member
1,970,036
Virtual Valley Games#1241210 · VVGer
1,726,456
Emote Clan#6264771 · Member
1,704,013
Game Chefs#9165165 · Member
1,657,301
Smart's Studio#6504408 · Fans [🥰]
1,567,685
Vices Games#555253 · 🎮 [Players]
1,538,160
Trendsetter Games#12363692 · Player
1,513,215
Lamon Production#35682611 · Member
1,509,007
SF Experiences#674203592 · ⭐️ Member
1,492,151
Abracadabra#997074 · Players
1,482,903
Good Ape#3212936 · Movie Stars
1,388,543
Treat Studios#8014500 · Member
1,223,556
Whacky Wizards#10960525 · Wacky Wizard
1,134,617
Dashing Builders#10669449 · Member
1,124,441
Low-Grade Games#32735312 · Member
1,096,856
ObliviousHD Fan Group#2769555 · Popcorn Enjoyer🍿
1,067,402
Retro Dev#5264310 · Member
1,041,100
Gym Trainers#13056072 · Member
1,007,600
Jex Games#8024935 · Player
960,785
PlayBox!#9363456 · 🌟 Fan
915,790
D:/Drive#861213399 · Member
881,967
Protein Cookie Creations#16911030 · Owner 🍪
862,904
Treasure Hunt Simulator Fans#3823645 · Fan
821,340
Reinvent#8121283 · Member
808,370
BrickSmooth#32591331 · SUPPORTER
789,266
Playhood#828481364 · Players
787,292
chases fan club#3498985 · Member
783,427
Pyro's Studio#3426208 · #1 FANS
779,171
Gaeming Studios#7286093 · 🌟Member
739,090
BloxCrafters Emerald#7724965 · Member
739,012
FutureWeb Games#5456035 · Member
730,154
totally not secret games#635601940 · Crying Souls
722,414
CatLeo Studio#6469321 · Fan
715,180
Ro-Bot Studios!#35120320 · Scientists
711,335
wrldstar ent#34509466 · Owner
624,885
the m devs#33999610 · Member
598,558
Digital Destruction#5143234 · ❤️
551,702
Fortune Pot#35996492 · 🍀 Fan
515,062
Gorilla Ape Productions#6743014 · Fans
483,306
Calculated Studio#4431500 · Fan
480,377
Tame an Animal Studio#35860721 · Members
446,089
My Brainrot Lamborghini#33731670 · Owner
441,298
Admin RNG#34296420 · Admin
426,737
Soaring Games#7508011 · Member
396,667
Bitware Games#7064164 · Member
371,060
Wings ツ#2514178 · 😶 customer
366,638
Sus Developments#34046990 · Member
320,628
Buff Games#11389492 · Member
320,123
special games group#14399850 · member
266,663
ROLEPLAY Hospital!#6317892 · ⭐Epic Member
259,693
Random Tycoon Games#14584690 · 🎮 | Players
242,248
Become a Nextbot Community#15795752 · Fans
237,354
Reset!#1073500779 · Member
200,626
luandun games fans#6227386 · Member
166,311
LOL Strong Game#1106680464 · LOOKSMAXXER
163,757
AmberVault#5491362 · Member
141,835

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