Mat @Mattergrox #61721119

561

followers (as measured)

28 May 2014

account created (per Roblox API)

2 Nov 2026, 07:20

last measured (UTC)

Username record

@Mattergrox — 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)

>|SCPF|< Special Containment Procedures Foundation#5863772

4

The Resistance of James Bay#3985650

1

CASA: Operations Division#527047926

1

CASA: Emergency Support Unit#332764900

1

Concord Crime Suppression Authority#832075726

1

Concord Assets and Services Authority#150873037

1

CASA: Public Affairs#960743516

1

CASA: Security Division#671814861

Open data

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

Also a member of

LSPLASH#3049798 · you guys

Car Crushers Community#2726951 · Skilled Crusher

16bitplay Games#3233280 · Member

Paradoxum Games#4914494 · Player

The MonkeyMan Fan Club#14765325 · Member

Nova Wave Games#14089766 · Member

ROLVe#2613928 · Members

InfinityInteractive#11257245 · Fans

Police Roleplay Community#4328109 · Community Member

SCP | Roleplay Community#5479038 · Roleplayer

Polaroid Studios#15422038 · Pre-Alpha Players

SEA Military#2648601 · [WO] Warrant Officer

CRIMCORP#4165692 · Fan

Innovation Inc.#157764 · Member

Nightmare Industries#2930838 · Fan

Jean's Bizarre Community#6356872 · Member

Five-O Community#4824823 · Member

Stepford County Railway#3620943 · [TD] Trainee Driver

Gear.#6133295 · Players

Qubix Games#11495802 · Members

Imperialist Robloxian Federation#872876 · Citizen

CookieScript's games#17171528 · Member

Frigus#1049814 · Fan

MyGroupNamesThis#2986372 · Bacon Army

REACT Studiosᅠ#17180419 · REACT Supporter

Imperialist Robloxian Military#3029096 · Master Corporal

Sandy Shores | DOJ-RP#10855191 · Member

Innovation Security#901313 · [MR]Advanced Officer

Empirian Interactive#861750368 · Member

State of Firestone#2803360 · Middle Class Citizen

TIX Clothing +#6589372 · Customers

Palm Creations#5611347 · Community Member

Reason 2 Die Community#1104933 · Members

d4rk886's Studio#581376 · Nice Players (1,000 Kills in BW:TL

[SCPF] Special Containment Procedures Foundation#2694395 · Level - 0

Deca Studio#16370191 · Community

bhos#12698897 · Townie

First Response | Studios#4987925 · Community Member

KPB Studios#14533554 · Member

rBreach Official Community#4767891 · Member

Ready 2 Die: Community#5407300 · Survivor

Two Player Military Tycoon!#1250738 · Gamer

Let's Party infinite developers#2916340 · Beta Tester/Fan

Blue Line Factory#17208760 · Member

Periastron.#5414199 · Fan

7Zl's Projects#11614776 · | Member

Concord Agency Registry#33009395 · Member

Pripp#5735591 · Prippians

CAR: Registry Management Authority#34344544 · Cadet

[SEA] Spearhead Command#15857418 · [E-1] Seaman Recruit

[GOC] : Global Occult Coalition#10055043 · Coalition Member

Generic Uniform Depot#14711938 · Member

BERKELEY ® Apparel#3325775 · Customer

GOC ~ The Global Occult Coalition#7133302 · Civilian

Reason 3 Die Community#13406783 · <>

[SEA] 12th Special Forces#16513706 · [LR1] Phantom

Catalog Gear Place: Rebirth#35508423 · Member

[SCP~F] Special Containment Procedures Foundation#6065078 · O5 Council

PROJECT:PHOBOS#32482173 · Supporter

CAR: Concord Bureau of Investigation#32050383 · Senior Agent

CAR: Concord Air National Guard#34463948 · Airman

The Grox Family#6260372 · The Grox Family

CANG: Base & Military Police Squadron#622806616 · Patrolman

[~] RPC Authority#10465343 · Confined Subject

CBI: Security Forces#970395511 · Ground Coordinator

(SCp scp) PROJECT:: REDATCEd SCPF!#5322015 · The Arbitrator General

[SCPF] | Specialized Containment Procedures#11127868 · Site Engineer

Thе Fоundаtiоn#7434501 · Class Disposable

[SOMS] Sons of Man Society#6524940 · Clearance-Null

《|DHS|》Department of Homeland Security: Concord#7781266 · 〔J〕Junior Agent

Grox Secret Service#12903550 · Skoogy

AlanRBLX#6051687 · Friends

Jail Escape©#3695142 · Tester

[SCP~F] Department of External Affairs#6809884 · Overseer

6

Shooter Projects#3845208 · Fan

5

[SCP~F] The O5 Council#11315653 · [~] O5-9

5

|CBG| Church of the Broken God#7149825 · Sacrifice

5

)|SCPF|( Red Right Hand#5879702 · Operative

2

)|SCPF|( Scientific Department#5368900 · Intern

2

)|SCPF|( Department of External Affairs#5379814 · Management

2

)|SCPF|( Mobile Task Forces#5352873 · Alpha-1

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