Softbank BB Speed Test

Softbank BB is an internet service provider which operates in Japan. Currently it ranks on the place 2 from 456 providers in Japan.

Average results for Softbank BB

174.35 Mb/s

Download Speed

105.94 Mb/s

Upload Speed

59 ms

Ping Latency

Softbank BB coverage

You can get Internet access in Fukuoka, Tokyo, Kagoshima, Sapporo, Nagoya, Hiroshima, Niigata, Osaka, Kumamoto, Sendai, and other cities within Japan.

Most popular ISPs in Japan

Provider Name	Download Speed	Number of Tests
NTT	258.28 Mb/s	258723
au one net	211.69 Mb/s	152437
So-net	353.33 Mb/s	88277
KDDI	384.62 Mb/s	79924
Ntt Docomo	176.81 Mb/s	65600
J:COM	230.19 Mb/s	63414
Biglobe	328.12 Mb/s	59677
K-Opticom Corporation	113.36 Mb/s	52237
VECTANT	199.26 Mb/s	37083
JPNE	318.92 Mb/s	36970

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 05.04.2023 to 05.10.2023).