China proposes building two new satellite constellations, each with about 100,000 satellites

China has filed papers with the International Telecommunication Union (ITU) — the international licensing agency comparable to the U.S.’s FCC — to build two new satellite constellations, each with about 100,000 satellites that would be linked as one gigantic constellation.

The filings, submitted to the ITU in late December 2025, are designated CTC-1 (CHN2025-79441) and CTC-2 (CHN2025-79398), each covering 96,714 satellites in 3,660 orbital planes, according to documents posted in the Union’s “as-received” database.

CTC-1 includes both advance publication information (API) and a more detailed coordination request, reflecting progression through different stages of the ITU regulatory process for a single notional Non-Geostationary Orbit (NGSO) system, while CTC-2 currently remains at the API-only stage. Both reference a “new operating agency” as a placeholder for their operating agencies.

Together, the pair represent one of the largest constellation filings ever made, highlighting the growing competition over orbital and spectrum resources.

Both filings appear to be very preliminary, and in fact appear to be an attempt by China to grab control of as much orbital territory and satellite spectrum as possible, to block others from access. Neither has been approved, and won’t be without a detailed review by the ITU.