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@KarlMacmillan #327541144

24 June 2017
account created (per Roblox API)
2 Nov 2026, 01:26
last measured (UTC)

Username record

@KarlMacmillan — observed 2 November 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 Kurtzstein Family#4243087
5

Open data

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

Also a member of

Jandel's Road Trip#33097934 · Owner
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Paradoxum Games#4914494 · Player
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dilly dally games#281380235 · Member
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The Red Army .#4802792 · Junior Conscript
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Virtual Block Studio#2856593 · Member
1,488,739
CRIMCORP#4165692 · Fan
1,178,349
Factory Limited#33685094 · Worker
1,093,470
Dunn Games#4035125 · Fan
1,028,620
Blox Studiо#4843020 · Member
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Special Containment Procedures Foundation [SCPF]#2760782 · Level - 1
617,809
Imperialist Robloxian Federation#872876 · High Class Citizen
548,989
Block Games Studios#6129662 · Members
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The Garrison ᅠ#13151234 · Regular Patron
412,827
be a planet — official fan group#32075108 · Fan
412,186
Empire Frаnçаis#5610765 · Citoyen
243,407
Peak Development Studios#2838077 · Member
210,871
.workspace#12249805 · Member
190,515
Vision Works#3190911 · Member
177,862
The Lost Rim#34051432 · Member
172,975
The Lumber Company#4967547 · Member
146,364
Stacks of Cash#674050067 · Member
141,774
Containment Breach Community#3140613 · Supporters
128,952
The Mining Company#4915489 · Member
122,973
FreshGoods PLC#14425013 · Junior Staff
86,253
BERKOK Studios#1044445844 · Member
78,999
IRF | Bolsheviks#991882 · IRF Citizen
63,176
IRF | Admissions#3052496 · Labour Lottery
59,592
Concrete Rose Studios#17280108 · Supporter
58,070
LinQ Studios#15018646 · Member
52,870
侍GHOST#35208231 · Members
36,835
Come Back Frank Ocean#901961245 · Tester
28,095
British AIIied Forces 1940's#4740937 · Major
18,632
SCP: Serious Roleplay#10624849 · Class-D
14,324
Βrіtіsh Αrmed Forces#2582808 · Naval Service SCO
6,817
Veteran Association of the Federation#5504168 · Veteran Supporter
4,258
Industrial Tech Atelier#32643771 · Member
3,636
Stalemated#34481627 · Member
2,850
Imperial Army of Octavium#33444465 · Recruit
2,704
SF | Elysium#35065216 · Illumen Hadean
2,368
Zaenderism#66015462 · Loyalist
1,932
Roblox WW2 Community#64553683 · Notable Participant
519
The Doge's Empire#5048443 · General
462
Saberforce Duelists#35283668 · Master of the Shadows
419
Britannіca#35281558 · Civilian
332
Unitеd Nаtionsᅠ#16801341 · International Citizen
309
[IJA] Greater Army Of The Japanese Empire#8425856 · 三等兵 • Santōhei | RCT
195
Türkіyeᅠ#1090628268 · Service Command | Section Chief
192
Rоyаӏ Nаvy#32884827 · Captain
171
Sublіme Ottoman State#932148889 · Immigrant
168
Loopwork#84673783 · Dev
165
The Gray Оrder#36065967 · Initiate
156
British Royal Navy 1940s'#5499867 · Second Sealord
122
Lord's Citadel#33627502 · Member
118
The Chance#3974465 · Legend
99
British Mediterranean Fleet 1940's#603771942 · Second Sealord
95
[EOJ] Japanese Empire#9366219 · 軍隊 • Guntai | Military
93
SF | The Valkyries of Valorium#9662593 · LR・Valkyrie
83
Waffle Warehouse#5834585 · Waffler - MR
76
Homе Fleet#888060354 · Squadron/Flotilla Leader
76
The Professional's Family#5258870 · Junior Professional Officer.
67
Northeastern Armyᅠᅠᅠᅠᅠᅠ#684586420 · ☆ | - Xīnbīng [No Cmd.]
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United Kingdom of Great Britain ᅠ ᅠ ᅠ#856885358 · Group Staff
49
The Alpine Organization#6891602 · Allied Representative
46
Order of Balds#35150176 · Generational Baldness
39
Staff Bladeforce#34401897 · SF Sr Mod
34
The Zurchen Federation ᅠ#13126007 · Honorary Citizen
32
Ottoman Imperіal Army#874362465 · Nefer
32
Schisme#484242965 · Distinguished Associate
29
Military Of The Doge Empire#7124303 · 7th Panzer Division
27
Macmillan Brotherhood#11130850 · Assembly
27
Royal Navy Specialties & Trades 1940's#1043294298 · Deputy Chief of Naval Staff
25
Reformed State of Russia#7531095 · Military | Ministry Personnel
25
Preußische Heer [PH]#5783659 · Sr. Private | M2
24
The Swiss Federation#14237991 · Honored Citizen
24
Order of balds Imperium#16202977 · Hair removal expert
22
British Officer Corps 1940's#5698188 · Junior Commissioned Officer
21
Japаnᅠ#33056078 · 市民 - Citizen
15
angry trapper#35439590 · Member
15
Armed Forces of the Zurchen Federation#5599077 · Staff Sergeant
14
Türkiye Cumhuriyеti ᅠ ᅠ#32022811 · Bakanlar Kurulu
12
22nd Armoured Brigadeᅠ ᅠ#732543694 · Queen's Own Hussars
11
Royal Kingdom of Romania#15059629 · Officer Corps
11
The Armed Forces of Royal Romania#15061664 · General
10
British Armyᅠ ᅠ ᅠ#449067352 · Private
10
British Armed Forcesᅠ ᅠ ᅠ ᅠ ᅠ#880849496 · Initial Training Centre
10
Imperіal Japanese Army#32837018 · Nitōhei | 二等兵 | PVT
9
The Golikov Family#5618375 · members
8
Personal UGC Group of Mine#226844551 · Member
7
The State of Imperial Prussia#7894682 · Armed Forces
7
The Universal Unionᅠ ᅠ ᅠ#766703737 · Field Commander
6
Robine's Veteran League#11405877 · Supporter
6
and build ur base#625549715 · Cool Dev
6
Personal Funding Group of Mine#54930503 · Member
5
- AO - Department of Foreign Affairs#7782258 · Foreign Representative
5
Ottoman Imperial Army#697836211 · Recruit
5
Quantum Art#398950883 · Member
5
Roosevelt Brotherhood#212263208 · Consul
5
Overwatch Transhuman Armᅠ ᅠ ᅠ#342713634 · Overwatch Commander
4
The All-Russian State Government#9808223 · State Duma | State Council
4

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