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AS7522
STCN STNet, Incorporated

AS7522 announces 594,944 IPv4 addresses across 46 routed ranges, registered in JP. Figures come from the public global routing table and are refreshed daily.

595K addressesIPv4 space announced
46Routed ranges
JPRegistry country

Is AS7522 datacenter space?

Not according to the nine cloud and CDN providers whose published range lists we track. That is a statement about those specific lists, not proof the space is residential — plenty of hosting companies never publish machine-readable ranges, and this AS may well be one of them.

The reliable way to classify a specific address is to check it directly rather than to infer from the AS. The free lookup tool returns live tunnel and datacenter signals for any address.

What an AS number does and does not tell you

An autonomous system number identifies who announces a block of addresses to the internet's routing table. It is an organisational fact, and a durable one — useful for attributing traffic to a hosting company, a carrier, or a university.

It is not a risk signal. A residential ISP's AS carries the household traffic of millions of ordinary customers and, at the same time, whatever residential proxy exits have been installed on those customers' devices. A hosting AS carries scrapers and legitimate server-to-server integrations in the same ranges. Scoring an address on the reputation of its AS produces exactly the false positives that make fraud tooling untrustworthy.

Sentinel does not feed AS names or routing data into its risk score. Tunnel detection comes from live network intelligence, and the dch signal comes from provider-published ranges. This directory exists to answer "who announces this address," which is a different and genuinely useful question.

Announced IPv4 ranges

All 46 announced ranges.

Range startRange endAddresses
27.120.144.027.120.175.2558,192
27.133.48.027.133.63.2554,096
27.134.128.027.134.175.25512,288
36.52.96.036.52.111.2554,096
36.53.240.036.53.255.2554,096
59.156.144.059.156.159.2554,096
61.206.0.061.206.15.2554,096
61.215.240.061.215.255.2554,096
101.1.128.0101.1.255.25532,768
103.3.12.0103.3.15.2551,024
110.2.192.0110.2.223.2558,192
115.30.128.0115.31.63.25549,152
119.150.0.0119.150.31.2558,192
119.150.240.0119.150.255.2554,096
122.129.160.0122.129.191.2558,192
122.145.48.0122.145.111.25516,384
122.248.64.0122.248.95.2558,192
123.230.0.0123.230.255.25565,536
123.254.0.0123.254.63.25516,384
125.215.64.0125.215.127.25516,384
133.123.0.0133.123.255.25565,536
150.52.0.0150.52.255.25565,536
175.103.224.0175.103.255.2558,192
183.176.0.0183.176.255.25565,536
202.11.160.0202.11.163.2551,024
202.67.16.0202.67.31.2554,096
202.70.208.0202.70.223.2554,096
202.84.80.0202.84.95.2554,096
202.240.176.0202.240.177.255512
202.243.187.0202.243.187.255256
202.246.114.0202.246.114.255256
202.255.16.0202.255.23.2552,048
203.112.32.0203.112.63.2558,192
203.139.192.0203.139.223.2558,192
210.142.224.0210.142.255.2558,192
210.157.224.0210.157.255.2558,192
210.159.176.0210.159.191.2554,096
211.7.224.0211.7.255.2558,192
211.132.64.0211.132.95.2558,192
218.40.112.0218.40.127.2554,096
218.231.48.0218.231.63.2554,096
219.106.160.0219.106.175.2554,096
219.109.96.0219.109.127.2558,192
219.124.160.0219.124.191.2558,192
220.150.48.0220.150.63.2554,096
220.208.0.0220.208.31.2558,192

Check a specific address

The AS tells you who announces a range. Whether one address inside it is currently a tunnel is a live question, answered per address — for example 27.120.144.0, the first address in this AS's announced space. The free lookup tool takes any address, and the IP intelligence hub explains what each signal means.

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