Measurements were conducted three times each on platforms of 30 train stations and 30 points in between stations of Yamanote line (3 x 60 = 180 times).
Yamanote is a loop line circling the center of Tokyo.
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Average mobile network upstream speed on Yamanote line Japan 2021, by provider
The average upload speed of the mobile network provided by Rakuten Mobile, Inc. was the fastest among the four major mobile carriers in Japan, reaching a speed of **** megabits per second (Mbps) on Yamanote line as of May 2021.
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ICT Research & Consulting. (May 10, 2021). Average upstream speed of the 4G and 5G mobile network on Yamanote line in Japan as of May 2021, by provider (in Mbps) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 27, 2026, from /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/
ICT Research & Consulting. "Average upstream speed of the 4G and 5G mobile network on Yamanote line in Japan as of May 2021, by provider (in Mbps)." Chart. May 10, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 27, 2026. /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/
ICT Research & Consulting. (2021). Average upstream speed of the 4G and 5G mobile network on Yamanote line in Japan as of May 2021, by provider (in Mbps). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 27, 2026. /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/
ICT Research & Consulting. "Average Upstream Speed of The 4g and 5g Mobile Network on Yamanote Line in Japan as of May 2021, by Provider (in Mbps)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 May 2021, /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/
ICT Research & Consulting, Average upstream speed of the 4G and 5G mobile network on Yamanote line in Japan as of May 2021, by provider (in Mbps) ÌÇÐÄÆƽâ°æ, /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/ (last visited July 27, 2026)
Average upstream speed of the 4G and 5G mobile network on Yamanote line in Japan as of May 2021, by provider (in Mbps) [Graph], ICT Research & Consulting, May 10, 2021. [Online]. Available: /statistics/1096671/japan-4g-upload-speed-yamanote-line-by-provider/
