Ammo Content recently added three Osamu Tezuka anime adaptations with English dubs to Amazon Prime. The following episodes are available:

Black Jack (2004) episodes 1-52

(2004) episodes 1-52 Astro Boy (1980) episodes 1-13

(1980) episodes 1-13 Phoenix (2004) all 13 episodes

Ammo Content confirmed that it licensed the episodes from Japanese distributor Trans World Associates. All three shows have aired in some countries through The Japan Foundation within the past two years, but Ammo Content told ANN that it is not at this time working with The Japan Foundation.

The English dub of Black Jack is new. While no company has officially announced work on the dub — Ammo Content licensed the series with its localization — several voice actors have announced their involvement on social media. Vancouver-based voice actress Sunni Westbrook, who plays Pinoko, said the dub was recorded "a few years back."

The 62-episode television anime adaptation of Tezuka's Black Jack manga aired from 2004-2006. The now-defunct streaming and crowdfunding platform Anime Sols funded and released the first 26 episodes on DVD with English subtitles. Crunchyroll is streaming the first 28 episodes with English subtitles.

The 1980-1981 Astro Boy anime, the second television anime based on Tezuka's manga, ran for 52 episodes. Manga Entertainment previously released the series on VHS and DVD with an English dub. Ammo Content told ANN that the dub in the version it licensed was produced in 1980 by NTV.

The television anime adaptation of Tezuka's Phoenix manga aired in 2004. Media Blasters released the series on DVD with an English dub. Ammo Content told ANN that the dub in the version it licensed was produced in 2004 "with a New York Studio" for airing on a public broadcasting channel.

Ammo Content is also offering the Blood-C: The Last Mind stage play with English subtitles on Amazon Prime.

Thanks to I Miss Bionix for the news tip.

Sources: Email correspondence with Ammo Content, Amazon Prime (link 2, link 3) via I Miss Bionix, WTK

Update: Dub information on Astro Boy and Phoenix added via Ammo Content.