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@grandmastercool #579334

Roblox reported this account as terminated when this register checked on 13 August 2026. That is our detection date — Roblox does not publish when the termination happened.

2,450
followers (as measured)
28 June 2008
account created (per Roblox API)
13 Aug 2026, 09:04
last measured (UTC)

Username record

@grandmastercool — observed 13 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)

anime for haram#7184096
383
blue hood †#6906752
51
Lightning Longterms#6290701
27
Joey drew#6783513
24
Pure Builders#2898225
24
i eat bugs#7515004
21
BC Gama#4961848
21
ShirtsToSurprise#3758407
20
Oixlly Fan Group!#7714937
16
I am so cool :)#7635478
16
KA$H DOLL$$$#7049926
15
jailbreak free money club#6333020
13
Trolling Gang B)#6417222
13
Ropita baratita de H#7633319
12
Goldencobra#7497247
12
Official Clan Of Ninja Nation#7046978
12
I will give u it#6512087
12
~Roses Runway~#3061181
11
f̶e̶e̶l̶i̶n̶g̶s̶ d̶i̶e̶#7716807
11
Espresso Cafe [Offical]#5819756
11
Yes i am a person fan grouo#6109235
11
Break in fan#6682224
10
moon lord summons#6711853
10
ChillxTeam#3849955
10
MLB Fan Group and Fun#2821426
10
Billies baby avocados#6432003
10
1CoolRobloxBuilder's Group#616931
10
depression feelings#6489295
10
#PUPPY FAN CLUB!#7713966
10
beautiful cats!#6571890
10
conquerer team#2708725
10
Nathan3455's Group#670557
9
Toxic’s#7227397
9
The Clown Uprise#7478267
9
Fishy nippy’s#6578676
8
*Smøl Beån*s group#7131669
8
BriteGamesInc#4134140
8
DUK!#7225476
8
Blizzard :3#4395818
8
Larii's store#7733223
8
SADSTEREO#7510957
8
A f t o n Family.#7714696
8
Edgewood High School#6667396
7
S.C.P Secret Laboratory#7447741
7
Gamer mage productions#4300491
7
The offical Dino squad!#7022577
7
Starbucks Coffee Shop!#2662403
7
Myserty ;--;#7637701
7
Tectonic_Studios#5798445
7
THE GAMING DINOS ........RAWRRRRRRRRRR!!!#4220226
7

Open data

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

Also a member of

big chungus nationalist party#4663233 · Leader and Commander
7
_runames_#6116557 · 👑Lider 👑
7
Jaredvaldez fan club!!!!#826040 · Owner
7
[SK] Slovak Ministry of Foreign and European Affai#2976410 · Owner
6
Cooldude154212 group#6787395 · Owner
6
The British Empire*#7755331 · His Lordship
6
Pilots Sky High Friends!#7700245 · Vinny Ventriloquist.
6
~:* Sugarnauts *:~#7352616 · ☽ SugarOrbit ☾
6
한국인들이 모이는 그룹!#7787208 · Owner
6
Roblox Restaurant Reviewers#2867984 · Founder
6
Λtlas Union Secret Service#7998108 · [REDACTED]
5
Parageon Games#2922800 · Owner~
5
FL- Football league ####3009245 · Owner
5
The Uylssians#3205231 · {1} Supreme Ruler of Uylssia
5
Zelda Htrs#4432585 · Owner
5
Da simpies#6329236 · Owner
5
BUNNIES UNITED OFFICIAL!#6745390 · Bunny Queen
5
Moraah#6894031 · DONA DO GRUPO :D
5
한국인들의 그루#7331358 · Owner
5
Mushroom club ####7759505 · Owner
5
Da Ultimate Tribe#7595546 · Owner
4
Hiiiiiiiii hiiiiiiiiiii hiiiiiiiiiiiiii hiiiiiiiii#7695542 · Owner
4
•Plastic Magazine•#2551663 · lol
4
Jonah is ugly#7385608 · Owner
4
1st Texaꜱ Infantry Regiment#7651653 · Owner
4
Alex scar wolf family#7693035 · Owner
4
bunnies_fan2004#5510276 · Owner
4
Selfish Memories#6221377 · 𝙾𝚠𝚗𝚎𝚛
4
Crimson Vipers Army#2651851 · Emperor Crimson Carnage
4
The Kingdom of Lorreaux#3991403 · His Majesty, King Dixie of Lorreaux
4
Westerville Township#3723271 · Chief Of Police
4
Drip Gang Life#7527755 · Owner
4
arda's world#6667882 · Owner
3
silenserz#536098 · Owner
3
USA, United States Army#5644068 · Owner
3
Its queen Kim and peeps#4890639 · Owner
3
THE RANDOMS KATs#3102337 · Owner
3
we play games™#2906197 · BayaniVogel
3
swordfighting x training boys/girls#1022353 · Owner
3
Guest lovers of roblox#704170 · Owner
3
N@Z! supporters of ROBLOX#657962 · Owner
3
Roblox Racing.#540453 · Owner
3
Black Ops Military Army#504970 · commander
3
Demonic Mushrooms#7115976 · Owner
2
SquadGoals.#3345322 · ᴏᴡɴᴇʀ
2
Group: [SLV] Slovak Ground Forces #4672502 · Owner
2
[MH:THNH] Crimson Tails#5965958 · Hidden Sorcerer
2
hi (;#6379765 · Owner
2
Carbine Production's#986344 · Owner
2

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