AS401678: the BISECT-HOSTING network

AS401678 is an internet Autonomous System operated by BISECT-HOSTING (the United States). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS401678?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS401678 was assigned to BISECT-HOSTING by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS401678 currently announces 29 IPv4 block(s), totaling about 17.9 thousand addresses (17,920 in all), registered in the United States. Services from BISECT-HOSTING are reached through these addresses.

What it means to see AS401678 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS401678. That means the other end sits on the BISECT-HOSTING network (the United States). 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.