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@Prof_Hadron

@Prof_Hadron #1471697971

22 February 2020
account created (per Roblox API)
3 Sept 2026, 23:33
last measured (UTC)

Username record

@NINJA_MASTER1475 — observed 3 September 2026

@Prof_Hadron — observed 3 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)

The Great Empire's Forces#14312964
4
SCP Group from UNIVERSAL "Games Studio"!#8288048
3
The village hidden in the leafs.#14372900
1

Open data

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

Also a member of

Scriptbloxian Studios#4705120 · Legend
30,023,468
Chillz Studios#2782840 · 🌟Royal Member🌟
18,678,058
Bee Swarm Simulator Club#3982592 · Member
18,239,086
Roblox#7 · Member
13,540,219
Rumble Studios#3333298 · Fan
11,225,420
The Flamingo Fan Club#3336691 · December 5th we will all do something
9,877,499
(学乱) Gakuran#416091513 · Students
7,512,165
The Gang Stockholm#5273516 · Player
7,117,669
RELL World#1226491 · [Gen] 2X21
6,625,399
Paradoxum Games#4914494 · Player
6,065,523
Hexagon Development Community#5693735 · Member
5,972,263
Varis Studios#32421331 · Fan
5,800,980
mPhase#10587104 · Member
4,454,472
ROLVe#2613928 · Members
4,296,297
Thinking Project#1235888 · noob
4,152,401
IROC Studios Building Roleplaying Community#7064117 · Verified Gamer 🕹
3,497,482
Ready, set, more!#7371243 · Fan
3,465,576
RELL GAMES#4939446 · Bronze Rell
3,464,153
InfinityInteractive#11257245 · Fans
3,215,981
Pinewood Builders#159511 · Member
3,053,384
KreekCraft Community#3072234 · Member
3,012,543
Building & Military Roleplay Fan Group#4527672 · Everything Fan
2,717,674
GamesReborn#3991320 · Fan
2,661,264
Incentive Team#5376709 · Champion
2,527,368
BlockZone#5202664 · Member
2,511,269
polandgamebuilders#3732983 · 😀 Member
2,470,869
G RBLX Games#3481335 · 🔥| Players
2,217,917
Vanity Studio#4063400 · Fans
2,104,357
A.W. Apps#3182154 · Follower
2,001,525
Virtual Valley Games#1241210 · Titanic Captain
1,722,540
Smart's Studio#6504408 · Fans [🥰]
1,568,030
Hawkie Studios#9821921 · Member
1,402,306
Asylum Life Community#5819563 · Patient
1,387,413
LudicBoss#14876045 · Membro
1,355,652
Schwifty Studios#3642592 · Fans
1,312,285
SCP | Roleplay Community#5479038 · Roleplayer
1,275,536
BloxByte Games#4619164 · Fan
1,252,540
[CUSA] United States MiIitary#4219097 · [O1] Second Lieutenant
1,163,631
Tower Defense X#14733518 · fan :d
1,000,347
dreamy™#4266525 · Supporter
886,032
nico's stu#9511731 · member
750,364
generic roleplay gaem fanclub.#5574524 · fan.
736,557
Roblox+#2518656 · Member
719,036
United States Secret Serviceᅠᅠᅠ#5856978 · Special Agent In Charge
644,131
|BA| -British Army-#4972535 · [OR-1] Recruit
639,226
Special Containment Procedures Foundation [SCPF]#2760782 · Class - D
617,763
Quarantine Roleplay Community#6448240 · Community Member
613,105
OP Games Corporation#7318356 · ✨Special Members
521,044
Quantum Science Inc.#2847031 · Employee
486,107
[:] Nova Corporation#4965800 · Test Subject
465,584
Crazyblox Games#3196771 · Member
417,326
Sandbox Engine#526116898 · Member
304,192
SCPF || Special Containment Procedures Foundation#3069549 · Class D
278,880
Niite Studios#10359215 · Member
269,617
Ursa Major Games#10040680 · Member
242,376
Pinewood Builders Security Team#645836 · Trainee
242,021
SCP: Site Roleplay Community#2935212 · Group Member
220,231
Speedd Studio#4896695 · Member
217,406
ArenaDev#5353743 · Members
212,014
Foundation Roleplay#4711525 · Supporters
184,220
KonekoKitten's Official Fan Club#4332797 · Kitten
183,913
Roblox Intervention Foundation#5189037 · Clearance-0
169,900
Silou34's SCP Roleplaying Community#2766605 · Roleplayer
148,724
homermafia1's Testing Group#2801397 · Members
135,106
The Diamond Mafia#5219766 · 𝐒𝐥𝐢𝐠𝐡𝐭𝐲 𝐈𝐧𝐜𝐥𝐮𝐝𝐞𝐝 𝐃𝐢𝐚𝐦𝐨𝐧𝐝 (𝐒𝐢𝟏)
116,662
luisgamercool23 fan club#5204341 · Member
112,404
The Red Lake#7918368 · Member
101,260
bordr fanclub#5069767 · unpaid npc
100,522
Mash'Em Studios#13256613 · D-Class
89,734
USSS | Νational Guard#6752151 · [E1] Enlisted
79,227
Nerdy Pancake#5181744 · Member
62,857
Seattle Grace Hospital#2586305 · Patient
41,616
SCP-F ︱Special Containment Procedures Foundation#6650179 · Security Class 0
38,556
Styx Studios#4515569 · Fan
30,331
Intelligence Agents#1217214 · Member
30,177
SCP Futuristic Group#3185747 · Member
29,470
|BA| Veterans Association#9468130 · Association Member
25,952
JV EMPIRE#6552999 · 『♛』Members
24,846
Pinewood's Codes#22237 · Member
23,391
Special Containment Facilities.#5500300 · [Level-0]
22,669
Special Containment Procedures Foundation‌‌‌‌‌‌‌‌‌#2855814 · [Class-D]
17,476
M.A.C clothing#5219513 · Members
12,883
GameLegion#5306659 · Fans
11,773
S.C.P. Site-81#15850610 · Member
10,768
[SCPF] Roleplay Community#5304291 · Group Member
10,577
Hellpack#6503019 · Evil Spirit
8,222
TinyMind Games™#3127881 · Fan
1,575
SCP KEVIN Fan Group#8499857 · Fans
344
SCP Fantasy#5276852 · Class-D
334
Armed Forces Office [BWR]#33867957 · German Army Commmunity
247
Sugar FanClub#5110831 · Sugar Cubes
131
UNIVERSAL Games Studio#7350169 · 🏅🥉🥈🥇🏆🎖🏵🎗Founder and Chairman🎗🏵🎖🏆🥇🥈🥉🏅
17
the scp foundation| secure.contain.protect| Scp-f]#7879273 · D class
15
THE PUPPY KINGDOM#5695014 · Staff
15
Only me and everyone#8387311 · Sigma kids
15

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