@coolcoolboy21z #1526509623

24 March 2020

account created (per Roblox API)

20 Sept 2026, 11:41

last measured (UTC)

Username record

@coolcoolboy21z — observed 20 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)

it’s the cool boy nation#6847613

Open data

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

Also a member of

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Official Jelly Army#6288195 · Member

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Official Stranger Things Fans Group#5125917 · Fans🔦

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Denis daily fan group#2902828 · Fans

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The Flash.#2929660 · Citizens

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