So-net Speed Test

So-net is an internet service provider which operates in Japan. Currently it ranks on the place 6 from 409 providers in Japan.

Average results for So-net

428.04 Mb/s

Download Speed

353.42 Mb/s

Upload Speed

40 ms

Ping Latency

So-net coverage

You can get Internet access in and other cities within Japan.

Most popular ISPs in Japan

Provider Name	Download Speed	Number of Tests
NTT	431.6 Mb/s	365432
Softbank BB	242.81 Mb/s	119774
au one net	260.12 Mb/s	100488
KDDI	349.78 Mb/s	56221
Biglobe	350.29 Mb/s	44129
Ntt Docomo	122.86 Mb/s	34420
Rakuten Mobile Network	61.6 Mb/s	32378
J:COM	263.25 Mb/s	30354
JPNE	398.27 Mb/s	28541
K-Opticom Corporation	327.26 Mb/s	26884

Looking for more detailed information? Check our crowdsourced data

The download, upload and ping test will be performed to the closest server available near your location. This will mean that test will also be influenced by other factors such as quality of interconnection of So-net with Internet backbone. This test is more relevant to assess real Internet connection quality than ISP sponsored test since those typically test against a server within the ISP and do not test real Internet speed.

Results based on tests in last 6 months (from 13.09.2024 to 13.03.2025).