[UK] | HM Prison Service #5356179

members (measured 27 Aug 2026, 07:19 UTC)

19 December 2019

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 We do not publish numbers we have not measured.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)	Members	Change
10 Aug 2026, 18:57	13	first reading

Ownership

Owned by @GreatBritainAndNI as measured.

Members we’ve seen

@GreatBritainAndNI — Holder (rank 255)

Ferry (@Uncle_Ferry) — Group Manager (rank 254)

Johnny (@JohnnyMorganz) — Group Manager (rank 254)

sausage (@19frames) — Group Manager (rank 254)

Kukri (@Reakuri) — Group Manager (rank 254)

cookie (@BritishNeon) — Suspended (rank 1)

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

Rank structure

Holder1

Group Manager6

Monarch1

Prime Minister0

Lord Chancellor1

Minister of State0

Chief Executive Officer1

Chief Operating Officer0

Executive Director1

Custodial Manager0

Supervising Officer0

Administrative Officer0

Prison Officer0

Operational Support Grade0

Member13

Suspended2

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.

[UK] United Kingdom |#5267880 · 6 shared members

16,208

[UK] | London Fire Brigade#5356136 · 6 shared members

[UK] | Bank of England#5356139 · 6 shared members

|[UK]|British Armed Forces#5268024 · 5 shared members

1,329

[UK]| Metropolitan Police Service#5268003 · 5 shared members

[UK] | Houses of Parliament#5356163 · 5 shared members

[UK] | Privy Council#5356127 · 5 shared members

[UK] | Frontline Policing#5761264 · 5 shared members

[UK] | Foreign and Commonwealth Office#5356116 · 5 shared members

[UK] | National Health Service#5367938 · 5 shared members

[UK] | Downing Street Staff#5356146 · 5 shared members

[UK] | Metropolitan Police Armoury#7505935 · 4 shared members

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.