AS45678: the AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd. network
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Testar grátis 14 dias →AS45678 is an internet Autonomous System operated by AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd. (Japan). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS45678?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS45678 was assigned to AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS45678 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Japan. Services from AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd. are reached through these addresses.
What it means to see AS45678 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS45678. That means the other end sits on the AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd. network (Japan). 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 AS45678?
AS45678 is assigned to AAC-JP-AS ABN AMRO Clearing Tokyo Co., Ltd., registered in Japan.
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 AS45678 control?
AS45678 currently announces 256 routed IPv4 addresses.