AS151100: the RAILTEL-AS-IN RailTel Corporation is an Internet Service Provider network

AS151100 is an internet Autonomous System operated by RAILTEL-AS-IN RailTel Corporation is an Internet Service Provider (India). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS151100?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS151100 was assigned to RAILTEL-AS-IN RailTel Corporation is an Internet Service Provider by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS151100 currently announces 1 IPv4 block(s), totaling about 1 thousand addresses (1,024 in all), registered in India. Services from RAILTEL-AS-IN RailTel Corporation is an Internet Service Provider are reached through these addresses.

What it means to see AS151100 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS151100. That means the other end sits on the RAILTEL-AS-IN RailTel Corporation is an Internet Service Provider network (India). It can be legitimate — a cloud service, an ISP, a CDN — or an unexpected connection worth checking.

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