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
191.83 Mb/s 143321
Biglobe
257.16 Mb/s 57653
J:COM
297.72 Mb/s 47251
JPNE
357.86 Mb/s 33306
KDDI
426.94 Mb/s 70344
K-Opticom Corporation
137.63 Mb/s 42829
NTT
278.38 Mb/s 451206
Ntt Docomo
169.94 Mb/s 57141
Softbank BB
144.85 Mb/s 166192
So-net
364.66 Mb/s 68401
Average results in Japan

198.92 Mb/s

Download Speed

156.32 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 03.10.2023 to 03.04.2024).