Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
HΜ Ρrisοn Service

HΜ Ρrisοn Service #33423412

1
members (measured 3 Nov 2026, 16:20 UTC)
23 November 2023
created (per Roblox API)
10 August 2026
first measured 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 We do not publish numbers we have not measured.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
31 Aug 2026, 23:181first reading

Ownership

Owned by @ZI_ShareHolder as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

@ZI_ShareHolder — Governor (rank 255)

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

Rank structure

Governor0
Deputy Governor0
Assistant Governor0
Developer0
Chief Officer Grade I0
Chief Officer Grade II0
Operations Director0
Custodial Manager0
Prison Super0
Senior Prison Officer0
Prison Officer0
Probationary Prison Officer0
Entry Programme0
Under Investigation0
High Class Prisoners0
Member1
Prisoners0
Guest0

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

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.