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AS2527
SO-NET Sony Network Communications Inc.

AS2527 announces 3,867,648 IPv4 addresses across 71 routed ranges, registered in JP. Figures come from the public global routing table and are refreshed daily.

3.9M addressesIPv4 space announced
71Routed ranges
JPRegistry country

Is AS2527 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 71 announced ranges.

Range startRange endAddresses
36.2.0.036.2.31.2558,192
36.2.160.036.2.223.25516,384
39.110.0.039.111.255.255131,072
58.87.128.058.87.255.25532,768
59.146.0.059.147.255.255131,072
61.120.160.061.120.191.2558,192
61.211.0.061.211.63.25516,384
66.11.48.066.11.63.2554,096
90.149.0.090.149.255.25565,536
92.202.0.092.203.255.255131,072
103.2.48.0103.2.51.2551,024
103.241.124.0103.241.127.2551,024
110.66.0.0110.67.255.255131,072
110.232.152.0110.232.159.2552,048
111.216.0.0111.217.255.255131,072
115.162.0.0115.163.255.255131,072
116.67.128.0116.67.255.25532,768
116.82.0.0116.82.255.25565,536
116.91.32.0116.91.63.2558,192
116.91.160.0116.91.191.2558,192
118.236.0.0118.238.127.255163,840
118.238.192.0118.238.255.25516,384
118.240.0.0118.241.255.255131,072
120.74.0.0120.75.255.255131,072
121.2.0.0121.3.255.255131,072
121.101.64.0121.101.127.25516,384
121.103.0.0121.103.255.25565,536
122.223.224.0122.223.255.2558,192
123.198.0.0123.198.255.25565,536
124.219.128.0124.219.255.25532,768
126.209.128.0126.209.191.25516,384
131.147.0.0131.147.255.25565,536
131.213.0.0131.213.255.25565,536
133.114.0.0133.114.255.25565,536
133.165.128.0133.165.191.25516,384
143.189.0.0143.189.255.25565,536
147.192.0.0147.192.255.25565,536
150.147.0.0150.147.255.25565,536
150.246.0.0150.246.255.25565,536
150.249.0.0150.249.255.25565,536
152.117.128.0152.117.255.25532,768
152.165.0.0152.165.255.25565,536
157.147.0.0157.147.255.25565,536
159.28.64.0159.28.255.25549,152
160.86.0.0160.86.255.25565,536
164.70.128.0164.70.255.25532,768
182.168.0.0182.171.255.255262,144
198.144.160.0198.144.175.2554,096
202.213.192.0202.213.255.25516,384
202.223.64.0202.223.127.25516,384
202.226.20.0202.226.23.2551,024
202.238.64.0202.238.127.25516,384
207.65.128.0207.65.255.25532,768
209.17.64.0209.17.95.2558,192
210.132.128.0210.132.255.25532,768
210.139.128.0210.139.255.25532,768
210.156.160.0210.156.175.2554,096
210.174.0.0210.174.63.25516,384
210.250.64.0210.250.127.25516,384
211.2.0.0211.2.63.25516,384
211.10.32.0211.10.63.2558,192
211.128.32.0211.128.63.2558,192
216.153.64.0216.153.127.25516,384
218.41.0.0218.41.255.25565,536
218.110.0.0218.110.255.25565,536
218.221.0.0218.221.255.25565,536
219.98.0.0219.98.255.25565,536
219.104.0.0219.104.255.25565,536
219.111.128.0219.111.191.25516,384
220.211.0.0220.211.255.25565,536
223.132.0.0223.135.255.255262,144

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