ISPs in Japan

On this page you will find a list of ISPs offering Internet access in Japan ordered by the highest Download speed.

Our database also tracks coverage where those providers have been observed to provide a service.

Japan speed test
Browse by ISP we track coverage
Provider Name Download Speed Number of Tests
au one net
182.95 Mb/s 140222
235.14 Mb/s 56541
275.53 Mb/s 45076
356.26 Mb/s 31532
427.94 Mb/s 68331
K-Opticom Corporation
147.72 Mb/s 41055
270.48 Mb/s 452784
Ntt Docomo
158.98 Mb/s 54304
Softbank BB
141.23 Mb/s 159952
404.76 Mb/s 62021
Average results in Japan

202.85 Mb/s

Download Speed

160.4 Mb/s

Upload Speed

Total speed tests in Japan
What is a speed test result in Japan?

Results based on tests in last 6 months (from 02.11.2023 to 02.05.2024).