Softbank BB Speed Test

Softbank BB is an internet service provider which operates in Japan. Currently it ranks on the place 2 from 426 providers in Japan.

Average results for Softbank BB

243.04 Mb/s

Download Speed

148.85 Mb/s

Upload Speed

81 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	425.09 Mb/s	426661
au one net	269.54 Mb/s	106683
KDDI	370.59 Mb/s	53100
Biglobe	348.21 Mb/s	43437
Ntt Docomo	109.51 Mb/s	42953
So-net	450 Mb/s	42423
J:COM	263.64 Mb/s	37384
Rakuten Mobile Network	53.67 Mb/s	31485
K-Opticom Corporation	339.5 Mb/s	30207
JPNE	366.25 Mb/s	25426

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 03.03.2024 to 03.09.2024).