[MA] Marine Corps Officer Candidate School #17039218

members (measured 22 Sept 2026, 07:53 UTC)

19 February 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 We do not publish numbers we have not measured.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)	Members	Change
20 Aug 2026, 14:03	5	first reading

Ownership

Owned by Known (@KnownXWarfare) 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

Known (@KnownXWarfare) — Founder (rank 255)

@boycolor1234567 — Ownerships (rank 254)

King_Bob (@bobmarly1273) — USMC HICOM (rank 253)

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

Rank structure

Founder1

Ownerships1

USMC HICOM1

[O10] Chief of OCS0

[O9] Deputy Chief of OCS0

[O8] Instructor0

Trial Instructor0

[O6] Divisional Leaders1

[O5] Divisional Deputy Leaders1

[O4] Graduated Officer0

[O3] Phase III0

[O2] Phase II0

[O1] Phase I0

Member5

Guest0

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

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

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[OSFUSA] United States of America#1025445 · 2 shared members

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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.