AS1851: the ADELAIDE-UNIVERSITY-AS-AP The University of Adelaide network

AS1851 is an internet Autonomous System operated by ADELAIDE-UNIVERSITY-AS-AP The University of Adelaide (Australia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS1851?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS1851 was assigned to ADELAIDE-UNIVERSITY-AS-AP The University of Adelaide by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS1851 currently announces 11 IPv4 block(s), totaling about 134.7 thousand addresses (134,656 in all), registered in Australia. Services from ADELAIDE-UNIVERSITY-AS-AP The University of Adelaide are reached through these addresses.

What it means to see AS1851 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS1851. That means the other end sits on the ADELAIDE-UNIVERSITY-AS-AP The University of Adelaide 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

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