AS9303: the TDL2L-AS-AP The Digital Lab 2007 Limited network

AS9303 is an internet Autonomous System operated by TDL2L-AS-AP The Digital Lab 2007 Limited (New Zealand). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS9303?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS9303 was assigned to TDL2L-AS-AP The Digital Lab 2007 Limited by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS9303 currently announces 19 IPv4 block(s), totaling about 11.3 thousand addresses (11,264 in all), registered in New Zealand. Services from TDL2L-AS-AP The Digital Lab 2007 Limited are reached through these addresses.

What it means to see AS9303 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS9303. That means the other end sits on the TDL2L-AS-AP The Digital Lab 2007 Limited network (New Zealand). 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.