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@Zacmast #141585007

8 July 2016
account created (per Roblox API)
7 Oct 2026, 17:53
last measured (UTC)

Username record

@Zacmast — observed 7 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)

Cowz Studios#5052463
5

Open data

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

Also a member of

Scriptbloxian Studios#4705120 · Legend
30,035,878
LSPLASH#3049798 · you guys
24,076,030
Quataun#12121240 · Member
18,232,974
Rumble Studios#3333298 · Fan
11,232,042
Virtuality World#3606245 · Member
10,234,065
The Flamingo Fan Club#3336691 · December 5th we will all do something
9,880,773
Official Group of Drift Paradise#5216132 · 👤Standard Drifter
7,072,667
Roblox High School: Fan Club#1127093 · Cool Fan III
7,014,694
Paradoxum Games#4914494 · Player
6,044,742
Pilot Training Club#2794513 · Stunt Pilots
3,871,323
Badimo#3059674 · Member
3,499,142
USSF - United States Special Forces#22025 · [5] Sergeant
3,413,827
Pinewood Builders#159511 · Member
3,011,621
Team Sloth Forever#3367671 · Member
2,421,915
Police Roleplay Community#4328109 · Community Member
2,226,124
Vanity Studio#4063400 · Super Fans
2,096,602
Cruising Studios#5435520 · Fan
2,017,939
Greenville, Wisconsin#3078161 · Verified Citizen
1,953,630
Kavra's Kingdom#4561896 · Ranker
1,731,349
The Red Army .#4802792 · Initiate
1,538,076
Virtual Block Studio#2856593 · Member
1,489,735
Robloxian High School Group#2876351 · Player
1,483,436
Abracadabra#997074 · Players
1,482,867
Tycoon Typhoon#3234576 · Member
1,407,731
Studio Serenity#3261090 · Owner
1,382,705
SEA Military#2648601 · [MR3] Petty Officer
1,207,480
United States Armed Forces [USA]#3054949 · [E-0] Armed Forces Recruit
1,187,989
UrbanSector#6811462 · Fans
1,103,971
Tower Defense X#14733518 · fan :d
997,958
StyLiS Studios#1103278 · Supporters
940,778
Highfield City Police Department#6117548 · Colonel
867,487
generic roleplay gaem fanclub.#5574524 · fan.
736,578
Roblox+#2518656 · Member
719,497
Theme Park Tycoon 2#2910194 · Epic builder
684,995
Stepford County Railway#3620943 · [TD] Trainee Driver
667,118
[TCU] The Computer Union#8513762 · Civilian
641,646
The Sparkle Time Studio#2618316 · Supporter
570,251
Secondhand Studios#2748390 · Subscriber
531,383
Soybeen#2841240 · Goobers
517,920
The First Encounter Assault Recon#72321 · [REC] Recruit
500,930
Venzel Studios#9828157 · Member
495,205
Badorkbee#3375285 · Follower
489,751
Superb Melon#4589677 · Member
474,672
Shovelware Studios#2816074 · Shovel Fan
458,696
br7h productions#10860091 · 👍 milk enjoyer
434,120
The State of Mind#4347428 · ⭐️ Important Member
416,706
MyGroupNamesThis#2986372 · Bacon Army
376,772
Moonstone Games#8918098 · Member
368,700
The Robine#2808906 · RCT
343,871
TEH #DUCKSQUAD#3385188 · FAN
309,314
New York City Pоlice Departmentᅠ#9473652 · Police Cadet
291,280
Olix's Corner Shop 2.0#3839858 · 🔵 blueberries
284,254
uhhhh my games#35908746 · whatever
233,808
Tower Battles Community#3404390 · Member
223,448
The Robloxian General Hospital#2580112 · [2] Nurse
206,809
Vision Works#3190911 · Member
177,783
Shard Seekers#2736518 · Seeker
168,156
VG Gang#3867483 · Member
164,086
Shipping Studios#2856522 · Player
142,321
Tycoon Universe#2850947 · Tycoon Player
110,389
Tornado Alley Community#4404391 · Fan
102,735
Notorious: Elite#2710476 · Member
102,638
The Crew & Friends#3015421 · Friend
97,270
Tradattire#4762103 · Customer
74,406
Tornado Simulator Community#2682621 · Storm Chasers
70,889
PoliceSim Studios#3244701 · Fan
69,076
Tycoon Royale#2834981 · Fan
64,917
REEF - Ocean Lovers#2666061 · Minnow
60,468
The Cooking Boys#4067946 · Member
57,225
Trade#598411 · Casual Trader
55,720
Seniac Fans#2823675 · Member
47,338
SFS Flight Simulator#3083863 · Captain
44,209
Two Player Military Tycoon!#1250738 · Gamer
41,950
Super Innovation Games#4387317 · Member
41,632
Rails Unlimited Open#3583111 · Players
28,501
SynerG#3232596 · Fans
28,309
Bank of Robloxia#141878 · Customer
26,591
Russian Federation ᅠᅠᅠᅠᅠ#3676081 · Immigration
23,382
RoBowling#2719308 · Bowling Fan
20,804
Terminal Railways Fan Club#3377439 · Awesome Supporter
14,607
Trainware#3403602 · Member
14,143
Shark Attack Fan Club#2692508 · ⚔️ Skilled Shark Hunter ⚔️
12,656
Subway Testing#3043778 · Fan
11,343
[SEA] Spearhead Command#15857418 · [E-1] Seaman Recruit
3,704
The CItizens™#3054954 · Fans
3,518
[SEA] Marine Reserved Forces#16808829 · [LR1] Private
2,943
Tropic Air ®™#3575540 · Economy
1,687
Realworkemma#16217583 · Member
1,408
Rat_army#5668298 · Epic rat soldier
200
The Baka Clan#4106256 · Member
91
The Biggest Lottery and Robux GIVEAWAY IN ROBLOX#3632360 · Raffle Buyer
42
The real king bob fan group#4649563 · zac d g
37
Traffic Cones#1172914 · ✯✯T.C. Fan [LV: 2]✯✯
25
Rat_empire#5979474 · Rat
19
Silver Legion of Mayflower#4053538 · Party Member
2

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