AS133929: the TWOWINCOLIMITED-AS-AP TWOWIN CO., LIMITED network

AS133929 is an internet Autonomous System operated by TWOWINCOLIMITED-AS-AP TWOWIN CO., LIMITED (Hong Kong). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS133929?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS133929 was assigned to TWOWINCOLIMITED-AS-AP TWOWIN CO., LIMITED by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS133929 currently announces 20 IPv4 block(s), totaling about 11.8 thousand addresses (11,776 in all), registered in Hong Kong. Services from TWOWINCOLIMITED-AS-AP TWOWIN CO., LIMITED are reached through these addresses.

What it means to see AS133929 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS133929. That means the other end sits on the TWOWINCOLIMITED-AS-AP TWOWIN CO., LIMITED network (Hong Kong). 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.