AS137923: the CIBNET-AS-AP CiB Net Station Sdn Bhd network

AS137923 is an internet Autonomous System operated by CIBNET-AS-AP CiB Net Station Sdn Bhd (Malaysia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS137923?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS137923 was assigned to CIBNET-AS-AP CiB Net Station Sdn Bhd by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS137923 currently announces 3 IPv4 block(s), totaling 768 addresses (768 in all), registered in Malaysia. Services from CIBNET-AS-AP CiB Net Station Sdn Bhd are reached through these addresses.

What it means to see AS137923 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS137923. That means the other end sits on the CIBNET-AS-AP CiB Net Station Sdn Bhd network (Malaysia). 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.