Quick Answer
Mobile Suit Gundam UC: A Phantom World is streaming on Crunchyroll. 1 episodes. Availability may vary by region.
Where to Watch Mobile Suit Gundam UC: A Phantom World
Mobile Suit Gundam UC: A Phantom World is currently on Crunchyroll. Keep in mind that catalogs change by region — if you don't see it on your usual service, check the other platforms listed here.
Confirmed Streaming Platforms
Subscription availability by JustWatch
Check Other Platforms
Anime licensing changes by region. If Mobile Suit Gundam UC: A Phantom Worldisn't on your usual service, try these.
About Mobile Suit Gundam UC: A Phantom World
The short begins when an Anaheim Electronics-manufacture Sinanju Stein unit, stolen and now affiliated with the Neo Zeon unit Sleeves, bursts through the Earth's stratosphere. The Unicorn takes off from the Nahel Argama and moves to intercept. While it engages with the Sinanju Stein, the Banshee Norn and Phenex are moving to assist. (Source: ANN)
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Mobile Suit Gundam UC: A Phantom World legally?
Right now, Mobile Suit Gundam UC: A Phantom World is on Crunchyroll. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Mobile Suit Gundam UC: A Phantom World on Netflix or Crunchyroll?
It's confirmed on Crunchyroll. Netflix availability depends on your region — some countries have it, others don't.
Is Mobile Suit Gundam UC: A Phantom World available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Mobile Suit Gundam UC: A Phantom World.
Can I watch Mobile Suit Gundam UC: A Phantom World for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.