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キラー @coolmasterfireman #197431927

19 December 2016
account created (per Roblox API)
1 Nov 2026, 13:33
last measured (UTC)

Username record

@coolmasterfireman — observed 1 November 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.

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Also a member of

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Sol's Studio#8509669 · [Gamers]
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The Flamingo Fan Club#3336691 · December 5th we will all do something
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Cebrail's Studio#33201221 · Boss
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RELL World#1226491 · [Gen] 2X21
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Driving Empire by Voldex#4999963 · Driver
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Murder Mystery#1030692 · Innocent
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Tetra Games#4843918 · Fan
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Pilot Training Club#2794513 · Fighter Pilots
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QuadraTech#4645213 · Supporter
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KreekCraft Community#3072234 · Member
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Expeditions Entertainment#35929511 · Member
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Universe Time Studio#6556072 · Universe Member
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Police Roleplay Community#4328109 · Community Member
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DevvGames#4856485 · Member
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The Red Army .#4802792 · Junior Conscript
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BloxByte Games#4619164 · Fan
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CRIMCORP#4165692 · Fan
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Nightmare Industries#2930838 · Fan
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Bizarre Collective#33161040 · Member
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Realistic Car Driving Studio#10823309 · Driver
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ARK-ADE#14080716 · Member
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Universal Tower Defense [UTD]#33861560 · Member
921,797
Titanic Ship Builders!#2978092 · Builder
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BrickSmooth#32591331 · SUPPORTER
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Cheesy Sausages#8754124 · Cheesy Guy
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JD - Roblox and More!#2982051 · Member
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Quantum Science Inc.#2847031 · Employee
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_Leagacy Studios_#3608354 · Owner
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Tsunami Sushi#1131775 · Trainee
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TenuousFlea Universe#4814485 · Supporters
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The Robine#2808906 · Ground Unit 05
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S0LID Foundation#34121404 · Member
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·The Marvel Universe·#3434601 · Citizens
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TV and Movie Apparel#10390141 · Aspiring Talent
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World Conquеst#12670687 · Conqueror
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Sniip3z Entertainment#11926182 · Member
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Animatronic Universe Studios#5125459 · Fazbear Family
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Ready 2 Die: Community#5407300 · Survivor
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Plasma Security Division#5114770 · Trainee
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MM2 Godly Trades#2853551 · Dealers
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Stray's Robotic Item Manufacturing#32749924 · Member
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Dragon Ball Z Clothing#16701851 · Z Warrior 🌏
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{Cyber Squad}#8736938 · Cyber Trainee
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Killer Looks#6520985 · Followers
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Kiddo & Friends Co.#903957 · Customers/Fans
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Talonika Buildz#6494872 · Member
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Dragon UGZ#32641050 · member
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90s Tapes#14646158 · Member
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whelmed#34726972 · whelmed
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Face Station#34649512 · Community
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NuGen Productions#15168913 · Owner
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Itz Abstract Fan Group#5646726 · Fans
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2,526
Fazbear's Costume Manor#36069003 · Party Guest
2,318
Portal Robotics, UGC#33055858 · Amazing Members
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Europe Gaming#10136512 · Member
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Jigsaw Rules#34400850 · 💉 The Needle Pit
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Murder Mystery 2 Traders (MM2Trades)#5964699 · [🗡️] Dealer
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Aspire chat#3391524 · President
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The Walking Dead Apparel#5716455 · Survivor
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Dear Halloween#34703761 · Member
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Woodsboro Wardrobe#9652450 · 「WOODSBORO RESIDENTS」
575
Halloween [Michael Myers] Night Of The Masks#3208036 · Cosplayers
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ClawlessTiger Gaming#5732705 · Member
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Eternal Blox#5206232 · Eternals
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The Teen-Titans!#7896967 · COOLEST PEOPLE EVER!!!!! :D
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Camp Crystal Lake - Est. 1980#33047089 · -Roy Burns-
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Membership and rank as measured from this user’s public group list.