Krypt0n @mark_under #1285976786
20 October 2019
account created (per Roblox API)
4 Sept 2026, 16:22
last measured (UTC)
Username record
@mark_under — observed 4 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)
Open data
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Also a member of
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31,197,222Scriptbloxian Studios#4705120 · Legend
30,021,854BIG Games Pets#3959677 · Fan
29,166,111LSPLASH#3049798 · you guys
24,187,993Quataun#12121240 · Member
18,415,739Current.#34852864 · Member
18,327,890Roblox#7 · Member
13,540,013AoTR [PI]#17347863 · Member
11,623,746⨯ Small World Games#17140361 · Goof
10,099,113Wild Atelier#7947655 · Member
8,925,394Car Crushers Community#2726951 · Bad Crusher
8,649,08416bitplay Games#3233280 · Member
7,250,767RELL World#1226491 · [Gen] 2X21
6,625,235Double Bandit Studios#13751258 · Bandits
6,256,815Varis Studios#32421331 · Fan
5,797,662rip_family#13189664 · Rip_Family
5,658,018Easy.gg#5774246 · Member
4,749,467Tetra Games#4843918 · Fan
4,196,088Mega Obby Games!#16134074 · Member
3,662,334Foltyn's Family#11775558 · Member
3,585,807Badimo#3059674 · Member
3,512,059RELL GAMES#4939446 · Bronze Rell
3,464,155HD Games.#5028964 · Fan
3,167,047Shark Fin Studios LLC#3751488 · Sharkie
2,994,463DemonCube#32635773 · member
2,811,346Fishy Robux#5293484 · Supporter
2,665,608red_legion#13854916 · Member
2,552,984Team Sloth Forever#3367671 · Member
2,420,901BEEP GAMES#11392290 · Fan
2,362,681Blind Shot Group#699920026 · Member
2,016,054[B:S] HW Team#6073919 · Fan
1,925,830Skandi Studios#34492682 · Member
1,871,645New ProjectR#34873522 · Member
1,857,872Lite Empire#3602628 · Player
1,577,395The Red Army .#4802792 · Initiate
1,543,542Abracadabra#997074 · Players
1,482,889LankyBox Roblox Group!#5718151 · Member
1,457,159Builders Club#8 · Member
1,377,341Schwifty Studios#3642592 · Fans
1,312,290Builderman#5 · Member
1,079,022TeamTanqR#3052825 · Fans
1,026,211Interbyte Studio#5126818 · Fans
937,853Weak Games Corp.#34970628 · Member
869,417Cleansey Fan Group#6622450 · Friends
865,682OOFer Squad#3718364 · Member
838,178Delivery Inc#12067923 · Member
784,948RB Battles Games#6321191 · [RBB] Fan - Team RBB
761,313Honey The Unicorn#5142719 · Member
716,178More Fun#8439028 · Member
702,878ytRivos Group#14232597 · Member
604,374Official Team Turtle#3329643 · Team Turtle
479,241BlueDevGroup#7040466 · Member
450,742RELL Seas#11020595 · Member
424,855MyGroupNamesThis#2986372 · Bacon Army
376,502RB Battles#4749931 · Member
253,717Rektway#4656785 · Fans
206,462Hidden Ember Village#8472120 · Villager
198,178Ruby's Secrets#5066166 · Member
171,795TeraBrite Games UGC#3157072 · Member
159,576Dewys Army#7122718 · Member
123,354BFF SQUAD YT#6304280 · Member
104,755ShanePlays Official Fan Page#3914699 · Member
78,675Adoptmepross FanGroup#5455758 · 🌱Seedling🌱
67,335ytRivo's Group#14070888 · Member
42,239Survival The Killer Gang#6558092 · Member
38,948VarietyJay#9645954 · Jay Bias
17,492Republic of Liberia.#14953624 · Liberian Citizen
1,034Nike knights#6876452 · Nike Nights 😎😎😎
374∆ Mastermind ∆#2522615 · Member
148TC LW#9880000 · Epik members
43VETERAN'SFORLIFE#11041292 · Administrator Veteran
14The red sniper#12449550 · Member
12Membership and rank as measured from this user’s public group list.