AS17275: the FMAC-I-BILLING network

AS17275 is an internet Autonomous System operated by FMAC-I-BILLING (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 AS17275?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS17275 was assigned to FMAC-I-BILLING by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS17275 currently announces 10 IPv4 block(s), totaling about 17.4 thousand addresses (17,408 in all), registered in the United States. Services from FMAC-I-BILLING are reached through these addresses.

What it means to see AS17275 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS17275. That means the other end sits on the FMAC-I-BILLING 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.