AS7684: the SAKURA-A SAKURA Internet Inc. network

AS7684 is an internet Autonomous System operated by SAKURA-A SAKURA Internet Inc. (Japan). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS7684?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS7684 was assigned to SAKURA-A SAKURA Internet Inc. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS7684 currently announces 26 IPv4 block(s), totaling about 368.6 thousand addresses (368,640 in all), registered in Japan. Services from SAKURA-A SAKURA Internet Inc. are reached through these addresses.

What it means to see AS7684 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS7684. That means the other end sits on the SAKURA-A SAKURA Internet Inc. network (Japan). It can be legitimate — a cloud service, an ISP, a CDN — or an unexpected connection worth checking.

How to see every connection and network your devices reach

Tracing one connection's ASN at a time is tedious. Sentinela, by PC Monitor, maps the devices on your network, shows what is exposed to the internet and helps flag suspicious connections and devices — running on your Windows. Meet Sentinela.