AS133975: the CHEMPLASTSANMAR-AS-IN Chemplast Sanmar Limited network

AS133975 is an internet Autonomous System operated by CHEMPLASTSANMAR-AS-IN Chemplast Sanmar Limited (India). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS133975?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS133975 was assigned to CHEMPLASTSANMAR-AS-IN Chemplast Sanmar Limited by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS133975 currently announces 1 IPv4 block(s), totaling 512 addresses (512 in all), registered in India. Services from CHEMPLASTSANMAR-AS-IN Chemplast Sanmar Limited are reached through these addresses.

What it means to see AS133975 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS133975. That means the other end sits on the CHEMPLASTSANMAR-AS-IN Chemplast Sanmar Limited 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

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