SoftBank Corp.

Japan's Big Four Carriers Sign MoU on Shared 5G mmWave Coverage

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Japan's Big Four Carriers Sign MoU on Shared 5G mmWave Coverage

Tokyo – October 12, 2026 -- KDDI, NTT DOCOMO, SoftBank and Rakuten Mobile signed a memorandum of understanding on September 11, 2026, to jointly study how 5G millimeter-wave base stations can serve customers across operator boundaries. The four carriers announced the agreement on September 16.

Four carriers will test technical feasibility of cross-operator mmWave use

The study will assess whether the usage coverage of 5G millimeter-wave base stations can be expanded among mobile network operators. The companies will also evaluate efficient operational frameworks for implementing such an arrangement.

The work will focus on technologies and approaches related to 5G millimeter-wave base stations, repeaters and other related assets. The operators plan concrete studies on how to make effective use of facilities that have already been deployed.

Sceye's ST1 Stratospheric Platform Completes 30,000-km Japan-US Test Flight

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Sceye's ST1 Stratospheric Platform Completes 30,000-km Japan-US Test Flight

Moriarty, New Mexico – September 16, 2026 -- Sceye's ST1 high-altitude platform station (HAPS) completed a nearly 30,000-km round trip between New Mexico and Japan, returning to continental US airspace on September 16, 2026, and reaching its Moriarty headquarters airspace on September 16, 2026, for additional testing and a planned descent.

Sceye's ST1 HAPS Completes 30,000km Round Trip to Japan for SoftBank

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Sceye's ST1 HAPS Completes 30,000km Round Trip to Japan for SoftBank

Moriarty, New Mexico – September 16, 2026 -- Sceye's stratospheric platform ST1 has completed a nearly 30,000-kilometer round trip between New Mexico and Japan, re-entering continental U.S. airspace on September 16, 2026, and reaching the company's Moriarty headquarters the following day for final testing and controlled descent.

ST1 logged over seven days in Japanese controlled airspace during a month-long mission

The high-altitude platform station (HAPS), developed with SoftBank Corp. (TOKYO: 9434), marked Sceye's first flight into Asia and a key step toward commercial HAPS deployment. ST1 maintained a station-keeping radius of just 5 kilometers off the Japanese coast while operating continuously at 16.5 to 17 kilometers altitude.

Sceye's ST1 Completes 30,000-km Stratospheric Flight to Japan and Back

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Sceye's ST1 Completes 30,000-km Stratospheric Flight to Japan and Back

Moriarty, New Mexico – September 16, 2026 -- Sceye's ST1 high-altitude platform has completed a nearly 30,000-km round-trip mission between New Mexico and Japan, landing back near the company's Moriarty headquarters after re-entering continental U.S. airspace on September 16, 2026. The uncrewed stratospheric aircraft reached New Mexico airspace on September 16, 2026, where engineers ran final platform tests before executing a planned flight-termination and descent procedure.

Sceye's ST1 Completes 30,000km Stratospheric Flight With SoftBank

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Sceye's ST1 Completes 30,000km Stratospheric Flight With SoftBank

Moriarty, New Mexico – September 14, 2026 -- Sceye's ST1 high-altitude platform completed a nearly 30,000 km round-trip flight from New Mexico to Japan and back, re-entering continental U.S. airspace on September 14, 2026 and reaching Moriarty, New Mexico on September 14, 2026, where the company conducted final vehicle testing and a planned descent.

ST1 marks Sceye's first flight to Asia in partnership with SoftBank

The month-long mission was conducted with SoftBank Corp. (TOKYO: 9434) and represents Sceye's first flight into Asian airspace. ST1 carried SceyeCELL, described as a first-of-its-kind stratospheric "cell tower in the sky" built to deliver wide-area mobile broadband directly to standard devices. At full scale, one Sceye HAPS is designed to cover an area equivalent to roughly 500 terrestrial towers.

Sceye's ST1 Stratospheric Platform Completes 30,000km Japan-US Round Trip

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Sceye's ST1 Stratospheric Platform Completes 30,000km Japan-US Round Trip

Moriarty, New Mexico – September 14, 2026 -- Sceye's ST1 high-altitude platform station has completed a nearly 30,000-kilometer round trip between New Mexico and Japan, re-entering the continental United States on September 14, 2026, and reaching the company's Moriarty headquarters airspace on September 5 for final tests and controlled descent.

ST1 marks Sceye's first flight into Asian airspace under a SoftBank partnership

The month-long mission, conducted with Japanese telecom operator SoftBank Corp. (TOKYO: 9434), represents a commercial milestone for high-altitude platform station (HAPS) deployment. ST1 operated in Japanese airspace for more than seven days, maintaining continuous position over Japan's coast with a station-keeping radius of just 5 kilometers at altitudes between 16.5 and 17 km.

CNCF Adds SoftBank, Crusoe Among Nine New Silver Members

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CNCF Adds SoftBank, Crusoe Among Nine New Silver Members

Shanghai – September 10, 2026 -- The Cloud Native Computing Foundation (CNCF) has added nine new Silver members, including telecommunications operator SoftBank Corp. and AI infrastructure provider Crusoe, expanding a global community that now counts nearly 800 members, over 300,000 contributors, more than 250 projects and participants in 190 countries.

SoftBank Corp. and Crusoe anchor a cohort built for AI production infrastructure

SoftBank Corp. (TOKYO: 9434), which operates telecommunications and IT businesses across Japan and internationally, is expanding its AI computing infrastructure and cloud services under its "Activate AI for Society" strategy. Crusoe, an AI factory company vertically integrated across energy, compute and cloud, contributes Crusoe Cloud, a GPU-powered managed inference and infrastructure-as-a-service platform with intelligent orchestration for AI training and high-performance computing.

Sceye HAPS Completes 15,000km Stratospheric Flight From US to Japan

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Sceye HAPS Completes 15,000km Stratospheric Flight From US to Japan

Tokyo – September 08, 2026 -- Sceye's Service Test 1 (ST1) stratospheric platform completed a transpacific flight of more than 15,000 kilometers from New Mexico to Japan in 13 days, demonstrating mobile broadband connectivity through SoftBank Corp.'s core network using unmodified consumer devices.

Sceye and SoftBank achieve 68-millisecond round-trip latency using onboard edge computing

The mission installed a server directly on the high-altitude platform system (HAPS), enabling data processing to occur onboard rather than through internet-based cloud infrastructure. This cut communication latency by more than 40% compared to cloud processing, marking what the companies describe as the first global test of a mobile core network and web server installed on a HAPS.

Sceye HAPS Completes 15,000km Stratospheric Flight to Japan With SoftBank

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Sceye HAPS Completes 15,000km Stratospheric Flight to Japan With SoftBank

Tokyo – September 08, 2026 -- Sceye's high-altitude platform system flew more than 15,000 km through the stratosphere from New Mexico to Japan in 13 days, marking the company's first flight to Asia and a milestone toward commercial deployment of stratospheric telecom infrastructure.

The Service Test 1 (ST1) mission launched September 08, 2026 at 7:00 a.m. Mountain Daylight Time from New Mexico and spent over seven days operating in airspace controlled by Japan, executed in partnership with SoftBank Corp. (Tokyo: 9434).

Platform delivers mobile broadband to unmodified devices via SoftBank's core network

Upon reaching Japanese airspace, ST1 demonstrated mobile broadband connectivity to standard devices through SoftBank's core network, including text messaging, voice calls, internet access and video streaming. The tests also covered emergency alert broadcasting for large-scale disaster scenarios and drone communications.

Sceye's Stratospheric HAPS Completes 15,000km NM-to-Japan Flight

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Sceye's Stratospheric HAPS Completes 15,000km NM-to-Japan Flight

Tokyo – September 07, 2026 -- Sceye's Service Test 1 (ST1) stratospheric platform completed a 15,000-km flight from New Mexico to Japan in 13 days, marking the company's first Asia deployment and a milestone toward commercial High-Altitude Platform Systems (HAPS) infrastructure.

Conducted with SoftBank Corp. (TOKYO:9434), ST1 launched August 9, 2026, at 7:00 AM MDT and operated within Japanese airspace for over seven days, maintaining a station-seeking radius as low as 5 km while flying at approximately 16.5 km altitude.