657th Tank Destroyers #10204673

members (measured 25 Aug 2026, 15:54 UTC)

1 April 2021

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 We do not publish numbers we have not measured.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
25 Aug 2026, 15:54	2	first reading

Ownership

Owned by user #1613149006 as measured.

Members we’ve seen

Rupert (@Callsign_Kilo) — Trainee (rank 220)

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

Related groups

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

The US Military 1940s#4545116 · 1 shared members

1,419,040

SEA Military#2648601 · 1 shared members

1,189,780

United States Military 1960s ᅠ ᅠ#3454445 · 1 shared members

960,820

Hapless Studios#5502618 · 1 shared members

838,310

Quarantine Roleplay Community#6448240 · 1 shared members

614,630

United States Army #4121686 · 1 shared members

373,567

Extreme War Experience#5863339 · 1 shared members

345,781

MorphForge#5130204 · 1 shared members

343,451

Ḉontinental Army#5031513 · 1 shared members

257,011

Risk Universalis - Conquest RP#2568175 · 1 shared members

129,539

FRR | First Responders Roleplay#5808748 · 1 shared members

91,804

World Conquеst#12670687 · 1 shared members

87,368

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.