@mjdev13 #3047646923

9 November 2021

account created (per Roblox API)

28 Aug 2026, 22:39

last measured (UTC)

Username record

@mjdev13 — observed 28 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)

House of the Bat#35953982

Open data

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

Also a member of

LSPLASH#3049798 · you guys

Quataun#12121240 · Member

Roblox Wiki#127081 · Wiki Helper

Badimo#3059674 · Member

InfinityInteractive#11257245 · Fans

KreekCraft Community#3072234 · Member

Playduo Studio#4626344 · ⭐Fan

Police Roleplay Community#4328109 · Community Member

|BA| British Army#2621202 · [OR-3] Lance Corporal

|GAR| Grand Army of the Republic |#5214183 · Lance Corporal

The US Military 1940s#4545116 · First Sergeant

United States Army #3108077 · [E5] Sergeant

Tycoon Typhoon#3234576 · New

Garuda Expeditions#11313421 · Climber

| Coffee Bros |#32308848 · Fans

CTStudio#9482918 · Supporters

Highfield City Police Department#6117548 · Constable

PIGGY.#5618811 · Member

United States Secret Serviceᅠᅠᅠ#5856978 · Agent In Training

Central Intelligence Agencyᅠᅠᅠ#6572612 · Assistant Supervisory Special Operative

Project Combat#14077803 · Member

The United States Marine Corpsᅠᅠᅠ#5655676 · [E2] Private First Class

Always Ascending#35855594 · Member

The Galactic Empire ‌ ‌ ‌ ‌#3145747 · Staff Sergeant

Special Weapons and Tactics Unitᅠ ᅠ#10394427 · Staff Sergeant

Naval Roleplay Community#3534363 · Enlisted

Ḉontinental Army#5031513 · Militia

RB Battles#4749931 · Member

Unitеd States Air Force#6760741 · [E1] Airman Basic

Roblox Developer Community#10720185 · Developer

Vision Works#3190911 · Member

Inc Entertainment#13710456 · Pro Player

Chesapeake Studios#17005184 · Fan

[-] Royal Guards#32411430 · Lance Corporal

Rise of Nations#832833 · Fan

[GAR] Grand Army оf the Republic#33537532 · ⚪ Republic Military Personnel

MRD lndustries#15480742 · MRD | Group Member

East Korea.#3178507 · Citizen

The Galаctіc Republic#34755744 · Cadet

The Lightforge#7405043 · Member

{EAST} Eastern People's Army.#12536609 · Master Sergeant

[-] Metropolitan Policе Servicе#32418861 · Trainee Constable

RoWifi HQ#5581309 · Member

TGE | Imperial Navy#3159956 · Crewman

Quartermaster Customs#5040124 · Client

Fazbear Management#6945767 · The face of Freddy Fazbear's pizza

SUN | United Nations#10385085 · International Citizen

Royal Court of the British Isles#9760747 · Citizens of the United Kingdom

Emergency Response Customs#3311910 · Fan/Customer

Float's Obby Group#33981112 · Member

{EAST} Worker's Party House#6352618 · Party Member

{EAST} Ministry of People's Security#6352586 · Junior Lieutenant

United Statеs Αir Forcе#33334312 · [E7] Master Sergeant

Galactic Armory#5418614 · Customer

BoD.#16492676 · Un-Waved

Supreme ‌‌‌Headquarters Allied Expeditionary Force#3006571 · Allied Expeditionary Force

lopi ugc#32701022 · Member

The Realm Reborns#35287587 · Highborn

Quаrtermaster Corps 1940s#32617081 · Customer

{EAST} Eastern People's Army Naval Force#9953350 · Able Seaman

{EAST}Eastern People's Army Air and Anti Air Force#7408815 · Sergeant

Skywalker Clothing#8197996 · Customer

Several Kingdoms#34798051 · Traveller

Galactic UGC#33182353 · Member

Content deleted(33278570)#33278570 · Lowborn

Breads & Threads#3400197 · Supporters

House Baratheon ‌‌ ‌ ‌‌ ‌ ‌‌ ‌ ‌‌ ‌ ‌‌ ‌ ‌‌ ‌ ‌‌ ‌#3118190 · [Stormlander]

Republic at War Community#8290686 · Community Member

SharpVision#13317009 · Member

NATO • North Atlantic Treaty Organisation#34409243 · Allied Forces Personnel

NJRP | New Jersey State Roleplay Community#4919319 · NJSRP I Resident

Hall Fried Chicken#14656942 · Cashier

ROTE Community#13642419 · Community Member

The Emperors Own#33908596 · Imperial Citizen

Fort Red Sand#14266630 · [E-2] Private

{EAST} Ministry of Agriculture#33475547 · Distinguished Farmer

United States Nаvy ᅠᅠ#16908801 · [E1] Seamen Recruit

Oath of Office: Realistic RoIeplay#35019604 · Member

Oaths and Honor#35909438 · Wanderer

The Galactic Empire﹒#324502559 · Spacefarer

British Pοlitics#482418164 · British Citizen

Project Pax Aurora#33213677 · Tester

Fire & Song#10570988 · Small Folk

Brave's Recruitment Center#32643806 · Member

OH | State оf Ohio#35830845 · 3rd Ohio Volunteer Cavalry

Mystic Blades#32690287 · .

Τraining and Doctrine Cοmmand#4929259 · Drill Sergeant

United States Air Force [L]#432263282 · [E-1] Airman Basic

Zell Entertainment#3965497 · Valued Patron

165th lnfantry Brigade#32440420 · Drill Sergeant

Legacy of Flames#559231100 · Commoners of the Seven Realms

|CAN| Canada.#34075108 · Canadian Citizen

[-CA-] Canadian Αrmy#11213207 · [CAO] Chief of Army Operations

[~.United States Marine Corps.~]#12905521 · [E1] Private

Air Forcе Exchangе#34396345 · Client

Svearike#12344442 · Citizen

SUSA | Simulated United States of America#35777227 · Citizen

Gods upon Men#445144177 · Department Leader

SR || Government#33966583 · Minister

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