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.

Browse by ISP we track coverage
Provider Name Download Speed Number of Tests
ARTERIA Networks Corporation
37,66 Mb/s 1337
Biglobe
35,57 Mb/s 1027
Internet Initiative Japan
24,28 Mb/s 1244
Jupiter Telecommunications Co.
40,86 Mb/s 840
Kddi Corporation
32,61 Mb/s 3574
NTT DoCoMo,Inc.
25,44 Mb/s 1766
Open Computer Network
37,55 Mb/s 2391
Rakuten Communications Corp.
12,74 Mb/s 1291
Softbank BB
32,96 Mb/s 2945
Sony Network Communications
33,5 Mb/s 2161
Average results in Japan

32,46 Mb/s

Download Speed

27,53 Mb/s

Upload Speed

Top 10 - Fastest ISPs in Japan
Total speed tests in Japan
What is a speed test result in Japan?

Results based on tests in last 6 months (from 01-08-2017 to 31-01-2018).