AS7718: the TRANSACT-SDN-AS TransACT Capital Communications Pty Limited network

AS7718 is an internet Autonomous System operated by TRANSACT-SDN-AS TransACT Capital Communications Pty Limited (Australia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS7718?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS7718 was assigned to TRANSACT-SDN-AS TransACT Capital Communications Pty Limited by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS7718 currently announces 11 IPv4 block(s), totaling about 41.2 thousand addresses (41,216 in all), registered in Australia. Services from TRANSACT-SDN-AS TransACT Capital Communications Pty Limited are reached through these addresses.

What it means to see AS7718 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS7718. That means the other end sits on the TRANSACT-SDN-AS TransACT Capital Communications Pty Limited network (Australia). 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.