John @Pr_fessorJ #873820034

26 November 2018

account created (per Roblox API)

13 Aug 2026, 13:41

last measured (UTC)

Username record

@Pr_fessorJ — observed 13 August 2026

@sergeant_johnRoblox — observed 13 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)

Celarus#13310655

150

Aeternus Crucelare Edictum [A.C.E.]#17252975

Open data

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

Also a member of

HopeStar Studio#610973138 · Member

3,222,894

Universe Time Studio#6556072 · Universe Member

2,468,888

CXTO#33296648 · Member

1,165,939

Innovation Inc.#157764 · Member

1,142,511

Defoko's Lab#914246270 · Test Subject

859,325

OG Roblox's Myths For Real For Life#1106775 · fnaf missing children

411,483

Dev Noob Studios#34131223 · Member

333,851

SillyCat games#33573878 · Member

229,169

A Bizarre Community#4516503 · Member

170,512

Innovation Security#901313 · [LR]In Training

169,485

goose in red#15946459 · ♟cool person

153,578

Another Bizarre Adventure#5432843 · Members

140,480

Americans#1623 · Member

22,921

Conspicuous Contagion#14825705 · Remnant

750

[[T.S.Ls]] The Sith Lords#913171 · Kool people

241

TelaVel#8567842 · you guys

Eidolon Studios#5842950 · Tester

D.I.N.K CO#15675405 · The Professor

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