AS3662: the HARNET Joint Universities Computer Centre Limited network
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Testar grátis 14 dias →AS3662 is an internet Autonomous System operated by HARNET Joint Universities Computer Centre Limited (Hong Kong). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS3662?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS3662 was assigned to HARNET Joint Universities Computer Centre Limited by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS3662 currently announces 7 IPv4 block(s), totaling about 1.8 thousand addresses (1,760 in all), registered in Hong Kong. Services from HARNET Joint Universities Computer Centre Limited are reached through these addresses.
What it means to see AS3662 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS3662. That means the other end sits on the HARNET Joint Universities Computer Centre Limited network (Hong Kong). 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.
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Perguntas frequentes
Who owns AS3662?
AS3662 is assigned to HARNET Joint Universities Computer Centre Limited, registered in Hong Kong.
What is an ASN (Autonomous System)?
It is a unique number identifying a network with its own routing policy on the internet. RIRs (regional registries) assign these numbers to carriers, ISPs and companies.
How many IP addresses does AS3662 control?
AS3662 currently announces about 1.8 thousand routed IPv4 addresses.