AS146943: the TIER4CLOU-AS Tier 4 Cloud Services network

AS146943 is an internet Autonomous System operated by TIER4CLOU-AS Tier 4 Cloud Services (India). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS146943?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS146943 was assigned to TIER4CLOU-AS Tier 4 Cloud Services by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS146943 currently announces 61 IPv4 block(s), totaling about 23.3 thousand addresses (23,296 in all), registered in India. Services from TIER4CLOU-AS Tier 4 Cloud Services are reached through these addresses.

What it means to see AS146943 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS146943. That means the other end sits on the TIER4CLOU-AS Tier 4 Cloud Services network (India). 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.