AS24543: the FIRSTDATA-AS-AU AS FIRST DATA ELECTRONIC tRANSACTION PROCESSOR SYDNEY network

AS24543 is an internet Autonomous System operated by FIRSTDATA-AS-AU AS FIRST DATA ELECTRONIC tRANSACTION PROCESSOR SYDNEY (Australia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS24543?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS24543 was assigned to FIRSTDATA-AS-AU AS FIRST DATA ELECTRONIC tRANSACTION PROCESSOR SYDNEY by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS24543 currently announces 2 IPv4 block(s), totaling about 2 thousand addresses (2,048 in all), registered in Australia. Services from FIRSTDATA-AS-AU AS FIRST DATA ELECTRONIC tRANSACTION PROCESSOR SYDNEY are reached through these addresses.

What it means to see AS24543 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS24543. That means the other end sits on the FIRSTDATA-AS-AU AS FIRST DATA ELECTRONIC tRANSACTION PROCESSOR SYDNEY network (Australia). 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.