AS24155: the APBW-AS-TW Asia Pacific Broadband Wireless Communications Inc network

AS24155 is an internet Autonomous System operated by APBW-AS-TW Asia Pacific Broadband Wireless Communications Inc (Taiwan). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS24155?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS24155 was assigned to APBW-AS-TW Asia Pacific Broadband Wireless Communications Inc by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS24155 currently announces 16 IPv4 block(s), totaling about 7.2 thousand addresses (7,168 in all), registered in Taiwan. Services from APBW-AS-TW Asia Pacific Broadband Wireless Communications Inc are reached through these addresses.

What it means to see AS24155 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS24155. That means the other end sits on the APBW-AS-TW Asia Pacific Broadband Wireless Communications Inc network (Taiwan). 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.