AS34878: the KIT Karlsruhe Institute of Technology network

AS34878 is an internet Autonomous System operated by KIT Karlsruhe Institute of Technology (Germany). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS34878?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS34878 was assigned to KIT Karlsruhe Institute of Technology by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS34878 currently announces 4 IPv4 block(s), totaling about 200.7 thousand addresses (200,704 in all), registered in Germany. Services from KIT Karlsruhe Institute of Technology are reached through these addresses.

What it means to see AS34878 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS34878. That means the other end sits on the KIT Karlsruhe Institute of Technology network (Germany). 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.