Softbank BB Speed Test

Softbank BB is an internet service provider which operates in Japan. Currently it ranks on the place 2 from 419 providers in Japan.

Average results for Softbank BB

246.7 Mb/s

Download Speed

153.98 Mb/s

Upload Speed

78 ms

Ping Latency

Softbank BB 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	436.44 Mb/s	414284
au one net	270.46 Mb/s	100402
KDDI	367.42 Mb/s	49553
Biglobe	352.45 Mb/s	39771
Ntt Docomo	109.32 Mb/s	39142
So-net	449.24 Mb/s	38088
J:COM	264.21 Mb/s	33747
Rakuten Mobile Network	54.63 Mb/s	29243
K-Opticom Corporation	332 Mb/s	27534
JPNE	373 Mb/s	23924

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 Softbank BB 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 08.04.2024 to 08.10.2024).