AS135377: the UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED network

AS135377 is an internet Autonomous System operated by UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK 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 AS135377?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS135377 was assigned to UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS135377 currently announces 107 IPv4 block(s), totaling about 192.3 thousand addresses (192,256 in all), registered in Hong Kong. Services from UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED are reached through these addresses.

What it means to see AS135377 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS135377. That means the other end sits on the UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK 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.