Jack @blueMrJack #2214168489

14 December 2020

account created (per Roblox API)

10 Oct 2026, 04:44

last measured (UTC)

Username record

@blueMrJack — observed 10 October 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)

Jacksir productions#228040011

5

Federal Bureau of Investigation | Law enforcement#605207279

Open data

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

Also a member of

Scriptbloxian Studios#4705120 · Legend

ROLVe#2613928 · Members

Pilot Training Club#2794513 · Airline Pilots

QuadraTech#4645213 · Supporter

Calypso Entertainment#34412131 · Member

Pinewood Builders#159511 · Member

Pаrаgоn#3352473 · Member

Ronalds#33883891 · Junior Crew Member

Rock Panda Games#8252064 · Fan

Police Roleplay Community#4328109 · Community Member

Greenville, Wisconsin#3078161 · Verified Citizen

Pastriez ™#4334990 · Pastriez Peep

Bright Games Studios#13081182 · 💞 Rank I

Roanoke, VA#4451448 · Member

The Red Army .#4802792 · Initiate

The US Military 1940s#4545116 · Private

BurgerBlox Fast Food#8927586 · Trainee

United States Army #3108077 · [E1] Private (Basic Combat Training)

United States Armed Forces [USA]#3054949 · [E-0] Armed Forces Recruit

Koala Association#937709 · Customer

Innovation Inc.#157764 · Member

UrbanSector#6811462 · Fans

Stateview Correctional Facility. ∞#5025380 · Cadet Officer

SizzleBurger#1016598 · Trainee

United States Military 1960s ᅠ ᅠ#3454445 · E1

The Nighthawk Imperium#1174414 · | 1 | Citizen

Highfield City Police Department#6117548 · Police Officer

Hapless Studios#5502618 · Supporter

Μilitary Simulator#4800484 · Red Army Conscript

Titanic Ship Builders!#2978092 · Builder

Little Angels Daycare#2518831 · Toddler

Vinns Hotels and Resorts#5731115 · 1 | Trainee

supercat games#32943081 · superfan

Quantum Science Inc.#2847031 · Employee

PANTSIR DevTeam#12609204 · 〘💬〙Community Member

WrenchStudios A&E#9203842 · Member 🔧

UnᎥted States Marine Corps#5570997 · [RT] Recruit Training

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

The Galactic Empire ‌ ‌ ‌ ‌#3145747 · Cadet

Wrench Airlines#36065728 · Training

REACT Studiosᅠ#17180419 · Member

Special Weapons and Tactics Unitᅠ ᅠ#10394427 · Private First Class

New York City Pоlice Departmentᅠ#9473652 · Police Officer

McRonaldʼs#8189157 · Kitchen Leader

Naval Roleplay Community#3534363 · Enlisted

DEL Interactive#1032456636 · Member

The Red Cell#3880488 · | 1 | Recruit

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

Plasma Inc.#4192306 · Member

Mano County Roleplayᅠᅠ#10116878 · Member

the useless group !#32411475 · [👤] Member

Sandy Shores | DOJ-RP#10855191 · Member

Commonwealth of Pennsylvania | RP#5598688 · Trainee

SM Games#4427619 · Supporter

State of Firestone#2803360 · Middle Class Citizen

Palm Creations#5611347 · Community Member

First Response Studios.#3621763 · Member

United States Coast Guard ᅠ ᅠ#9057373 · [E1] Seaman Recruit

Network Britain#6074059 · [PS] Passenger

Innovation Thermal Plant Division#5294673 · Employee

Raddleton City Police Department#4308355 · [LR] Officer

guywithagroup#7161381 · guyinagroup

FRR | Los Angeles Police Department#5881087 · Cadet

Timberline Productions#7856718 · Member

muffahi's trains#4289781 · Member

Mano County Sheriff's Office - RolePlay#5415376 · Trainee

Owls & K-V#8061610 · 😀 | Supporter

Gate Studios#5023156 · Fans

Tiny-Ships Franchise#2883948 · Fan

Sandy Shores ||| DOJ-RP#34753038 · Member

RoWifi HQ#5581309 · Member

Desired Productions.#2658896 · [MR] Member

Ride Control Studios#10736057 · [TO] Trainee Operator

HKMR Limited#14304664 · [α] Alpha Men

My Lifts Group#6820891 · [TS] Trainee Surfer

San Andreas Highway Patrol | Sandy Shores#11081466 · Cadet

Cloud Workshop#4401434 · Member

MTR, 港鐵 | Mass Transit Railway, Hong Kong#17152650 · [G] Frequent Customer

[LCSO] Lakeview County Sheriff's Office#5031903 · Trainee

Simple Dynamics#9116478 · Member

Light Incorporated.#10196604 · Intern

Southwest Wind Science Inc.#13187142 · SWET - Employee

The Red IsIes#3994275 · Cadet [JOIN COMS]

The American Revolutionary War Community#6644426 · Member

Pro-TARDIS#4812210 · Fans

Iron County#4736638 · Resident

Mano County Police Department [MCPD]#7223668 · Community Member

[WL] WireLink#14922037 · Passengers

LALOL Hub#32377504 · 👥 › Member

Highfield County Jobs#7488369 · Citizen

Mass Transit Industries.#8887369 · Awaiting Role

Yocto Productions#8391651 · Member

Ruskoya#7417230 · Ruskan

Snidjet Fan Group#14656089 · Fans

Magnolia Borough Volunteer Fire Department#12734770 · Probationary Firefighter

Jiechu Seng Lu#9428139 · Dìzǐ

Sharp Creations#7368677 · Member

X Systems#34176323 · Member

Storm Assault [SA]#5281596 · [C] Cadet

Kingdom Official Studios#9456462 · Player

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