AS142123: the CNBN1-AS-AP Central Net Broadband Network network

AS142123 is an internet Autonomous System operated by CNBN1-AS-AP Central Net Broadband Network (Bangladesh). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS142123?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS142123 was assigned to CNBN1-AS-AP Central Net Broadband Network by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS142123 currently announces 1 IPv4 block(s), totaling 512 addresses (512 in all), registered in Bangladesh. Services from CNBN1-AS-AP Central Net Broadband Network are reached through these addresses.

What it means to see AS142123 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS142123. That means the other end sits on the CNBN1-AS-AP Central Net Broadband Network network (Bangladesh). 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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