AS215304: the YUWAN 5c480d1d9b5434ca6bc68db1836315acc9639b6f network

AS215304 is an internet Autonomous System operated by YUWAN 5c480d1d9b5434ca6bc68db1836315acc9639b6f (the United Kingdom). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS215304?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS215304 was assigned to YUWAN 5c480d1d9b5434ca6bc68db1836315acc9639b6f by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS215304 currently announces 4 IPv4 block(s), totaling about 1 thousand addresses (1,024 in all), registered in the United Kingdom. Services from YUWAN 5c480d1d9b5434ca6bc68db1836315acc9639b6f are reached through these addresses.

What it means to see AS215304 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS215304. That means the other end sits on the YUWAN 5c480d1d9b5434ca6bc68db1836315acc9639b6f network (the United Kingdom). 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.