10mm_Defeater @williamjohj123 #1619304769
9 May 2020
account created (per Roblox API)
21 Sept 2026, 13:27
last measured (UTC)
Username record
@williamjohj123 — observed 21 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
Car Crushers Community#2726951 · Skilled Crusher
8,649,052Ride Storm#6176760 · New Rider
1,646,493The Red Army .#4802792 · Initiate
1,543,474SLAP by Current.#1032198460 · Member
1,367,891Hapless Studios#5502618 · Supporter
851,233Μilitary Simulator#4800484 · Community Member
807,387Five-O Community#4824823 · Member
720,773richer than before#36065418 · Member
675,930Official Palm Beach Studios#17028435 · Member
492,104ネ ANARCHY $HOOTERS#5254643 · 『Members
421,468Summit Productions Development#33446529 · Client
415,568Hebei Studios#12348193 · Citizen
333,585ScotWARE#8426585 · Player
329,370Lasanheiros BR Community#218929716 · Membro
276,410[USA]The United States of America.#758071 · American Citizen
261,581Sandy Shores | DOJ-RP#10855191 · Member
183,467Sochi County#35794403 · Member
148,650British Columbia, Canadа#5530527 · Tourist
33,130VAMOS Transit#17331978 · [F] Fan
27,592The Resistance [☭]#2644197 · [OR0] Recruit
23,648On the Peninsula#33727810 · Townsfolk
17,762Hаrrison County#15665829 · Tourist
13,301‛Venté#5758511 · Team developer
3Membership and rank as measured from this user’s public group list.