AS15987: the PORTUNITY-AS network
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Testar grátis 14 dias →AS15987 is an internet Autonomous System operated by PORTUNITY-AS (Germany). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS15987?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15987 was assigned to PORTUNITY-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS15987 currently announces 13 IPv4 block(s), totaling about 29.7 thousand addresses (29,696 in all), registered in Germany. Services from PORTUNITY-AS are reached through these addresses.
What it means to see AS15987 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15987. That means the other end sits on the PORTUNITY-AS network (Germany). 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 AS15987?
AS15987 is assigned to PORTUNITY-AS, registered in Germany.
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 AS15987 control?
AS15987 currently announces about 29.7 thousand routed IPv4 addresses.