J:COM Speed Test

J:COM is an internet service provider which operates in Japan. Currently it ranks on the place 10 from 472 providers in Japan.

Average results for J:COM

180.51 Mb/s

Download Speed

27.32 Mb/s

Upload Speed

50 ms

Ping Latency

J:COM coverage

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

Most popular ISPs in Japan
Provider Name Download Speed Number of Tests
NTT
232.84 Mb/s 261846
Softbank BB
164.76 Mb/s 231353
au one net
166.4 Mb/s 171247
So-net
311.63 Mb/s 120456
Biglobe
298.98 Mb/s 76944
KDDI
312.99 Mb/s 72216
Ntt Docomo
73.69 Mb/s 65483
VECTANT
212.1 Mb/s 63638
JPNE
351.37 Mb/s 56978
K-Opticom Corporation
75.58 Mb/s 51440

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 J:COM 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 05.10.2021 to 05.04.2022).