Derferow_dev @ItzDerf_RBLX #3713321792
16 July 2022
account created (per Roblox API)
10 Aug 2026, 21:47
last measured (UTC)
Username record
@ItzDerf_RBLX — observed 10 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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2,751Survive Sonic.EXE: Extended Community#35350088 · Member
2,528OSC Games!#552732065 · Member
1,293Classic Sonic Simulator Creator Hub#32852183 · Watchers
636ted's dungeon & mor#34643543 · Member
598Classic Sonic Simulator Stars#16267876 · 🤩Fan🤩
398CSS HighWar Knight#16648156 · Member
337bracket's development group#35132548 · member
241Green’s Laboratory#15196853 · 🧪 Green Testers 🧪
54Warped Timeline Community#547080890 · OG Member
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252GotSpoiled Group#497646370 · Member
21ETERNISH NIGHTMARE COMMUNITY#247541152 · 👑 Co-Owner
17Membership and rank as measured from this user’s public group list.