AS133203: the SBIBITS-JP SBI BITS Co., Ltd. network
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Testar grátis 14 dias →AS133203 is an internet Autonomous System operated by SBIBITS-JP SBI BITS 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 AS133203?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS133203 was assigned to SBIBITS-JP SBI BITS Co., Ltd. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS133203 currently announces 3 IPv4 block(s), totaling about 1.3 thousand addresses (1,280 in all), registered in Japan. Services from SBIBITS-JP SBI BITS Co., Ltd. are reached through these addresses.
What it means to see AS133203 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS133203. That means the other end sits on the SBIBITS-JP SBI BITS 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 AS133203?
AS133203 is assigned to SBIBITS-JP SBI BITS 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 AS133203 control?
AS133203 currently announces about 1.3 thousand routed IPv4 addresses.