AS24509: the XPEDITE-AS-KR Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea network

AS24509 is an internet Autonomous System operated by XPEDITE-AS-KR Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea (South Korea). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS24509?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS24509 was assigned to XPEDITE-AS-KR Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS24509 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in South Korea. Services from XPEDITE-AS-KR Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea are reached through these addresses.

What it means to see AS24509 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS24509. That means the other end sits on the XPEDITE-AS-KR Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea network (South Korea). 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.