Bertan @Brtn54 #1136339844

26 June 2019

account created (per Roblox API)

19 Sept 2026, 21:39

last measured (UTC)

Username record

@Brtn54 — observed 19 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)

ROBUX MADNESSS#8417834

9

[EU] European Corpsᅠ#8345329

7

Spoiled cookie#7831177

6

NINJAMASTER07321#9269201

4

3

DANEIL TIGER#8644974

3

The Crystal Squad Fan Group#7764885

2

The official butterfly group!#7811648

2

Chruch of St. John#9255990

2

Ultimate Rocks#7355078

2

bigkingsqaud#9263382

1

Mᵉmento Mori#9298565

1

Yo yo join#7335270

1

Cobra kai never dies no mercy#9281848

Open data

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

Also a member of

Blue Lock Rivals Unofficial Fans#34671275 · Member

Wiggity.#12836673 · Member

Scriptbloxian Studios#4705120 · Legend

BIG Games Pets#3959677 · Fan

Gamer Robot Inc#4372130 · Member

Chillz Studios#2782840 · 🌟Royal Member🌟

Current.#34852864 · Member

Sol's Studio#8509669 · [Gamers]

BIG Games™#2703304 · Fan

16bitplay Games#3233280 · Member

Dynerix Studio#35850402 · ⭐ | Member

rip_family#13189664 · Member

xFrozen Obbys#16908756 · Member

Lightning Dragon Studio#12420072 · Fan

EOM STUDIO#15090884 · Fans

Pink Slime Studios#5357344 · Slimer

Midnight In-dev#16528477 · Member

BIG Games Experimental#4981455 · Fan

Incentive Team#5376709 · Champion

Just Games..#13270425 · Member

Oh My Crazy Games#7056632 · Fan

LightGaming!#6887275 · Member

Era Games#6140405 · Fans

Hug Playworks#36051556 · Member

Super Heroes™#3020631 · Member

Drive World | Twin Atlas#4909558 · Racer

Virtual Block Studio#2856593 · Member

BloxByte Games#4619164 · Fan

amazing fish games made by fish#14585821 · Member

ping bong#36059242 · Member

RoyalFire Simulators#9793279 · Member

Funwise#11338347 · Member

Skilled Studio LLC#787581 · Fan

Tycoon Empire!#5270391 · Member

Sy simulator group#33466777 · Member

Blackbox#3992746 · Fan

RELL Seas#11020595 · Member

Buckaboo Games#3448505 · Buckaroo

Brainrot United#192340962 · fan

HighLevel Studios#7270687 · Player

Grow a Garden Traders#302128727 · Trader

Familia Smurf#3702309 · 💙 Inscritos 💙

PoopDrop#34929948 · Membre

Adorable Anime Creations#584431737 · Member

Lost Garden#4790434 · Wanderer

Rome ‌‌ ‌‌#3132543 · Provincial

AlihanSapmaz#4717111 · 💚 JT 💚

Trillionaire Games#7816088 · Member

trapstuh#16857478 · ⋆ MEMBERS

The Mathematicians#8966861 · Member

rose /711#16752435 · Member

The Unkowns Clothing#9319008 · 🤍Member🤍

estrélla#7500531 · immortal

Beqtra's#8542806 · Member

PAGEM_1938's clothes#4989730 · 💖Takipçi💖

Tide Apparel#5199092 · Rookie

A K G#3396460 · Common

The Grand Navy of Australia#1023980 · Seaman

Tr DeMoNs TeaM#8543328 · Member

• UN | United Nations#7754804 · [IC] International Citizen

Dark Army [Assassin!]#5043809 · [1] Dark | 🖤

Boray kl#9725018 · 💛fan💛

Roblex for free#9286000 · Member

Psycho's Fan Group#6750509 · Customer

Erik Dalları#5274973 · Erik üyeler

pro_gamer's team#6045315 · Üyeler

Roblox Türkiye (Resmi Grubu)#4974208 · Member

Infinity Hell#14834004 · ♡ | Member

The Official Mac and Cheese Group#5889425 · Member

Karga Yuvası#8459144 · Tayfa

Spooky Island#7940516 · Members

Tree Fire#8578150 · Member

Helping those in need, A g a i n#8318423 · Üye💫

Skyblock Community Server#6766988 · Premium Member

bunni#4334562 · Member

kuzenler aga#9154485 · Member

7

Thebeast_playz#8299515 · Member

7

Winners from the challenge!#8674706 · Member

7

Awesome chat#8770919 · Member

7

Swish Streetwear#9266602 · Customers 😃

6

Bubbless!!#8656287 · Member

6

Mano County (BETA)#9278438 · Member

5

xxxtentacion and jucie wrold#8136311 · Member

4

The GUERREROTEAM fan group#9301135 · Member

3

PET PRO'SSS#9287046 · Member

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