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@mistermonster321

I_coolYAYyay @mistermonster321 #1513400860

18 March 2020
account created (per Roblox API)
25 Aug 2026, 06:17
last measured (UTC)

Username record

@mistermonster321 — observed 25 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)

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Also a member of

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Chillz Studios#2782840 · 🌟Royal Member🌟
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Quataun#12121240 · Member
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BIG Games™#2703304 · Fan
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The Flamingo Fan Club#3336691 · December 5th we will all do something
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Low Effort Studios.#16403616 · Yeeter
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Broken Wand Studios#4430841 · ✨ | Fans
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BLUEFLOWER STUDIOS#207107101 · Member
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Fisching#7381705 · Fischer
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Hexagon Development Community#5693735 · Member
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Nuclear Fun#476026804 · Fan
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Varis Studios#32421331 · Fan
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rip_family#13189664 · Member
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Pixellar Studios | RSC#520125566 · Member
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Murder Mystery#1030692 · Innocent
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mPhase#10587104 · Member
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YXceptional Studios#4217910 · Pro
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Tetra Games#4843918 · Fan
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Thinking Project#1235888 · noob
4,152,361
IROC Studios Building Roleplaying Community#7064117 · Verified Gamer 🕹
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Ready, set, more!#7371243 · Fan
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USSF - United States Special Forces#22025 · [5] Sergeant
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thunder1222 Productions#553699 · Member
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US Simulators#10741807 · Member
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XiaoChen Simulator#13780521 · Fan
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Dungeon Quest by Voldex#4788489 · Member
2,817,757
Ksieny#6712002 · Member
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Playduo Studio#4626344 · ⭐Fan
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MetaPlay Games#8892797 · Players
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TBlox Studios#6039961 · Player
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Windburst#11189454 · Member
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|BA| British Army#2621202 · [OR-8] Sergeant Major
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LightGaming!#6887275 · Member
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Car Crash Simulator Official Group#3338997 · Fan
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Smart's Studio#6504408 · Fans [🥰]
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Edot#5103306 · Member
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Generation X Studios#7224788 · Awesome Member
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Hawkie Studios#9821921 · Member
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Rats United#5948630 · Soldier
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[CUSA] United States MiIitary#4219097 · [E4] Corporal
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RoyalFire Simulators#9793279 · Member
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the very best games ever#1053465931 · Member
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Interbyte Studio#5126818 · Fans
937,876
SUPER SAVAGE MODE#10927001 · SAVAGE MEMBER
913,287
Hero_Studios#11646530 · ⚡Heroes⚡
836,985
STRAY DYNAMICS#772572026 · Member
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Crafty Savage!#6116651 · ❤️・Member
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Halt Studios & Sports#6235152 · [🏅] Community
639,860
Quarantine Roleplay Community#6448240 · Community Member
613,134
YewBow Arts#14279387 · Player
567,518
Spooky Scary Games#8775959 · 📷Experienced Ghost Hunter
562,934
Pixellar Studios#34702127 · Member
536,770
Modly Productions#6521321 · Member
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Repotted#4081626 · Member
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IMPOSSIBLE OBBY GAMES!#10529954 · Member
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Silux Games#10739264 · Member
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Bitware Games#7064164 · Member
371,243
LcLc OFFICIAL#5368483 · Member
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Kaden Fumblebottom#5228985 · pumpkin
226,346
Sellout Studios#4533129 · Player
188,294
Foundation Roleplay#4711525 · Supporters
184,227
CrunchLabs#32938820 · Member
181,025
Vision Works#3190911 · Member
177,862
Pet Fighting Game#14780019 · Member
174,976
Cave Diving Experience Group#6782703 · cave explorer
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bordr fanclub#5069767 · unpaid npc
100,528
Ro-Bio: Studios#5985663 · New Scientist
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kellan big money group#6296261 · Kellans gangy
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StockRise#9226175 · Stock Manager
37,122
Falling Llama Studios#5444525 · Poopling
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Tragedy Corp#4083075 · Fan
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United States Army ᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠᅠ#5250294 · [E2] Private Second Class
12,505
Grow a Valley#35943102 · Member
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Finnish Defense Forces [FDF]#5707505 · Varusmies
636
Deployment Maps#11550905 · Member
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mфnarchs#8852981 · recruits || (join disco)
545
BEDWARS GOD PLAYERS#11375694 · Event happening!
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Cwrd#33956853 · Member
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[CA] Canadian Army 1974#12414952 · [LR] Private
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Lappavaara, Finland RP#11370013 · Kansalainen
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the friend group for nice people#6169258 · Member
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TRASH.CO#10182765 · TRASH® SUPPORTER
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Membership and rank as measured from this user’s public group list.