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@jan_kaczka #10770662185

3 April 2026
account created (per Roblox API)
4 Nov 2026, 05:19
last measured (UTC)

Username record

@jan_kaczka — observed 4 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)

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

Also a member of

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lol games..#12208023 · Member
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The Garden Game#35789249 · Gardener
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Roblox#7 · Member
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Brookhaven by Voldex#3104358 · Member
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BIG Games™#2703304 · Fan
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Roblox Wiki#127081 · Wiki Helper
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KreekCraft Community#3072234 · Member
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Ascora Studios#424552416 · Member
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SUPER SUPER FAST#707609107 · Member
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Builders Club#8 · Member
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Builderman#5 · Member
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35px#34369315 · Supporter
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LOL#2 · Cheezburgers
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WOJAN STUDIO#11417477 · Member
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Roblox+#2518656 · Member
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Turbo Builders Club#9 · Member
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Arbuz Gang#4839801 · Member
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Staff#3829 · Fans of Staff
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Team PatiX#15711646 · Member
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+1 Sponge#762858611 · Member
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Widzowie Ercia!#11333694 · Member
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Internet Safety Project#34181794 · Member
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Dank#2629950 · Dank
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SmileSlow TEAM#12791531 · Member
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RobakiPedra#4190714 · Member
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#YouTube#3154713 · Member
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Biedronka_Polska#34826921 · Gracze
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Kaczki Hadesiaka#3040869 · Member
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The official erik.cassel fan club!#92218 · Fans
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ING_Polska#13621841 · Member
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#TEAMHEJTERKA#34939628 · Member
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Żabka Polska#32605250 · Member
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Roblox Polska Community#16765057 · 「👤」Członek
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Polandhaven Community#35115503 · Członek
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Mega Fani - Team PatiX#34743557 · Członek
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Poland - Polska#208767 · Not-Sorted
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ERC Studio#74401341 · Member
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!MrBeast!#14743270 · Fans
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JavaScript#120032 · Member
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Google Chrome#137899 · Member
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YouTube#501 · Member
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♫PoLsKa♫#259877 · Polak
6,262
Pizza#4491 · Pizza Fans
5,256
Ubuntu#287496 · Member
4,965
CS GO#1236165 · Fans
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Minecraft#471077 · Member
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Blender Creators#17445 · Creator
4,109
$#158153 · $$$
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Twitter#435 · #Twitter Users
4,002
banana#579376 · Baby Banana
3,902
EKIPA WIDZÓW BROTa! yt/roblox-brot#4517753 · Member
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Poland#25579 · Członek
2,903
Reddit#349987 · Redditor
2,695
Apple#17847 · Member
2,691
Steam#4590 · STEAM Fan
2,527
Skype#755265 · Member
2,444
Windows® 7 Users#50558 · Windows 7 User
2,230
Windows XP Users#185392 · Fans
2,169
Valve#3850 · Member
1,778
KoGaMa#548652 · KoGaManian
1,737
Chicken#47460 · Chicken
1,632
Gmail#48372 · Google Mailer
1,253
ROBLOX Community#37160 · Pending
1,200
[-] Alan Becker Fan Group#12988824 · Colors
1,178
Fall Guys#7377227 · Fan
1,096
Windows Phone#684577 · Fan
1,044
Kamilek ról#17279533 · Member
1,020
Pixel#20392 · Fan
888
C++#11930 · Member
876
?#21700 · ?
812
Linux#285005 · Member
768
Tik Tok#4349359 · Member
766
Windows Vista Users#373742 · Windows Vista Fan
745
PORTAL#40264 · Test subjects
621
Pumpkin#398673 · Mini Pumpkin
602
Facebook#13162 · Member
525
Java Programers#42027 · Java Programer
522
Grupa Dla Fajnych Ludzi#3922035 · Member
444
Rólls#11285619 · Member
440
Team Fortress#16759 · Member
408
Grupa Dla Totalnych Prosuw!#32567455 · Fani
399
Biedronka Polska#34431797 · Klient
315
Enjoy Studio#9760429 · Fans
235
the idiots#17845 · idiots
234
Erik Cassel Group!#2786501 · Erik Supporter
209
Pixar#22155 · Member
195
Gabe Newell#386738 · Half life 2
166
Portal 2#107352 · Member
148
Mac#81479 · Member
122
bing#69148 · bing person
113
gabe#980127 · Member
111
Meta#228018 · Member
100
unity#68547 · Member
98
Αmong Us#7775398 · Crewmate
95
alienware#57919 · cog soilder
87
Windows Users Group#271544 · What OS are you?
83
Meta Quest#15202315 · Members
82
Pro Arbuz#33990552 · !W0JAN TEAM!
81
Wheatley#1019026 · Test Subjects
64

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