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
42,48 Mb/s 1934
Biglobe
39,74 Mb/s 1588
Internet Initiative Japan
24,69 Mb/s 1749
Jupiter Telecommunications Co.
44,32 Mb/s 1317
Kddi Corporation
31,73 Mb/s 3635
NTT DoCoMo,Inc.
29,55 Mb/s 3158
Open Computer Network
40,24 Mb/s 2523
Rakuten Communications Corp.
14,65 Mb/s 2187
Softbank BB
35,36 Mb/s 2998
Sony Network Communications
31,16 Mb/s 3563
Average results in Japan

33,34 Mb/s

Download Speed

25,81 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 01-05-2017 to 31-10-2017).