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@kostas135821

KV21YT @kostas135821 #3693067545

9 July 2022
account created (per Roblox API)
23 Sept 2026, 13:45
last measured (UTC)

Username record

@kostas135821 — observed 23 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

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

Also a member of

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BIG Games Pets#3959677 · Fan
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LSPLASH#3049798 · you guys
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Pilot Training Club#2794513 · Trainee Pilots
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Windburst Banana#13657923 · Members
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BurgerBlox Fast Food#8927586 · Trainee
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Thinknoodles Community#3732425 · Member
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BUUR#3744035 · PENDING
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haz3mn#14097003 · member
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false#3314629 · not false
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Tsunami Sushi#1131775 · Customer
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be a planet — official fan group#32075108 · Fan
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Piks's UGC#13146191 · 👥 | Supporter
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OMG#4585943 · Friend
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Cupiful#11406821 · Fan
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Olix's Corner Shop 2.0#3839858 · 🔵 blueberries
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Max's Obbies#15424484 · Fan
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HeyRosalina#8558001 · Roses
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Quataun Drafts#16791712 · Member
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[ Content Deleted 17185175 ]#17185175 · Member
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Exclusive UGC#15999313 · admin❤️
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-LightBlueWorks Studios-#10327429 · Pending
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Polar Games#2636802 · Group Member
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Quixotic Studios.#15949659 · Members
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Damian's Chicken Coop#9606305 · Little Chickens
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PXL | Pixel Playground#17299549 · Members
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Plaza Connect Community!#1207931 · Plaza Community
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Gamer M8#5176394 · [😀] Member
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Speed Run Tower#33042499 · Speedster
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ATLAS SOFTWORKS#16205978 · Members
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Team Blocko#6467229 · Member
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Kikopop#6324180 · 🌐-people-🌐
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Djirtou's UGC#17132813 · 👥Members👥
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Decompailers's Group#33011629 · ✨Fan
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F2PGames#32585519 · ✨Member
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1gz Studios#7180935 · Member
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Olix's Corner Shop#32077009 · BlueBerry
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The Donation Guild#35467720 · Member
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Cutsfogaming#34816480 · Ladies and Gentlemen✨
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The Mind Gamers#8714905 · Member
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celalized#14087663 · fans
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COOPER2723 GAMES#32584767 · 7
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DoubleBox +#5988662 · Fans
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Please follow me to help get me verified#33688557 · Member
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Slashi's Productions#33606275 · ✅ | Fans
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Ballers Lab#33801756 · Member
796
Fake gamess#16687262 · Fan
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Xseer#15399399 · Seers
594
Prlx Studios#33266228 · Fan
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Official Paradise Games#8723602 · Member
168
Mythic's Studio's#14936780 · Member
65
Fixed Hat Studios#11582216 · Member
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FnafVip#13024685 · Member
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Zboys Room#32557766 · Member
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CENCORE ROBUX YESSIR#13893484 · Member
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xarisplsk 24 official fan page group (kind gang)#14255515 · fan
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Roastboy9lol Gang#12834462 · Member
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Yellow impostor squad group#32741985 · Member
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pitogiros group#14465537 · Member
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HotPotato.#33240057 · #1 Fan
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Membership and rank as measured from this user’s public group list.