AS150321: the SOTPREP-AS-AP Secretariat of the Pacific Regional Environment Programme network

AS150321 is an internet Autonomous System operated by SOTPREP-AS-AP Secretariat of the Pacific Regional Environment Programme (WS). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS150321?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS150321 was assigned to SOTPREP-AS-AP Secretariat of the Pacific Regional Environment Programme by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS150321 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in WS. Services from SOTPREP-AS-AP Secretariat of the Pacific Regional Environment Programme are reached through these addresses.

What it means to see AS150321 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS150321. That means the other end sits on the SOTPREP-AS-AP Secretariat of the Pacific Regional Environment Programme network (WS). 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.