Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
[USA] Alcatraz Prison Staff.

[USA] Alcatraz Prison Staff. #949026

12
members (measured 24 Aug 2026, 13:02 UTC)
7 September 2013
created (per Roblox API)
10 August 2026
first measured by this register

Description

The main prison building was built in 1910–12. During that time it was a United States Army military prison; Alcatraz was the site of a citadel from the 1860s. The United States Disciplinary Barracks, Pacific Branch of Alcatraz was acquired by the United States Department of Justice on October 12, 1933, and became a Federal Bureau of Prisons federal prison in August 1934, after the buildings were modernized to meet the requirements of a top-notch security prison. Given this high security and the location of Alcatraz in the cold waters and strong currents of San Francisco Bay, the prison operators believed Alcatraz to be inescapable and America's strongest prison. Warden: WarFighterPilot1 Deputy Warden: -Searching-

Written by the group; not a statement by this register.

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)MembersChange
24 Aug 2026, 13:0212first reading

Ownership

Owned by user #56408165 as measured.

Members we’ve seen

Sponge (@TSpongee)[COO] Vice President (rank 254)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Director of the Federal Institutions1
[COO] Vice President1
[CCO] Chief Compliance Officer0
[HC] Chief of Prisons 0
[HC] Warden0
[MR] Deputy Warden0
[MR] Prison Supervisor0
[LR] Lead Correctional Officer0
Suspended/Banned0
Member12
[LR] Correctional Officer10
Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.