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 City we track coverage
Browse by ISP we track coverage
| Provider Name | Download Speed | Number of Tests |
|---|---|---|
|
au one net
|
260.12 Mb/s | 100488 |
|
Biglobe
|
350.29 Mb/s | 44129 |
|
J:COM
|
263.25 Mb/s | 30354 |
|
JPNE
|
398.27 Mb/s | 28541 |
|
KDDI
|
349.78 Mb/s | 56221 |
|
NTT
|
431.6 Mb/s | 365432 |
|
Ntt Docomo
|
122.86 Mb/s | 34420 |
|
Rakuten Mobile Network
|
61.6 Mb/s | 32378 |
|
Softbank BB
|
242.81 Mb/s | 119774 |
|
So-net
|
428.04 Mb/s | 34848 |
Average results in Japan
220.63 Mb/s
Download Speed
187.23 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 13.09.2024 to 13.03.2025).