AS7473: the SINGTEL-AS-AP Singapore Telecommunications Ltd network

AS7473 is an internet Autonomous System operated by SINGTEL-AS-AP Singapore Telecommunications Ltd (Singapore). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS7473?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS7473 was assigned to SINGTEL-AS-AP Singapore Telecommunications Ltd by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS7473 currently announces 31 IPv4 block(s), totaling about 44.8 thousand addresses (44,800 in all), registered in Singapore. Services from SINGTEL-AS-AP Singapore Telecommunications Ltd are reached through these addresses.

What it means to see AS7473 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS7473. That means the other end sits on the SINGTEL-AS-AP Singapore Telecommunications Ltd network (Singapore). 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.