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AS9021
ISNET

AS9021 announces 147,712 IPv4 addresses across 40 routed ranges, registered in TR. Figures come from the public global routing table and are refreshed daily.

148K addressesIPv4 space announced
40Routed ranges
TRRegistry country

Is AS9021 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 40 announced ranges.

Range startRange endAddresses
90.158.0.090.158.3.2551,024
90.158.4.090.158.8.2551,280
90.158.9.090.158.24.2554,096
90.158.25.090.158.26.255512
90.158.27.090.158.39.2553,328
90.158.40.090.158.41.255512
90.158.42.090.158.48.2551,792
90.158.49.090.158.62.2553,584
90.158.63.090.158.68.2551,536
90.158.69.090.158.116.25512,288
90.158.117.090.158.123.2551,792
90.158.124.090.158.139.2554,096
90.158.140.090.158.160.2555,376
90.158.161.090.158.201.25510,496
90.158.202.090.158.227.2556,656
90.158.228.090.158.249.2555,632
90.158.251.090.159.15.2555,376
90.159.16.090.159.20.2551,280
90.159.21.090.159.29.2552,304
90.159.30.090.159.34.2551,280
90.159.35.090.159.50.2554,096
90.159.51.090.159.58.2552,048
90.159.59.090.159.61.255768
90.159.62.090.159.64.255768
90.159.65.090.159.136.25518,432
90.159.137.090.159.143.2551,792
90.159.144.090.159.207.25516,384
90.159.240.090.159.255.2554,096
185.66.124.0185.66.125.255512
185.237.68.0185.237.71.2551,024
212.98.0.0212.98.9.2552,560
212.98.10.0212.98.16.2551,792
212.98.17.0212.98.31.2553,840
213.143.225.0213.143.250.2556,656
213.143.252.0213.143.255.2551,024
213.161.128.0213.161.130.255768
213.161.132.0213.161.139.2552,048
213.161.140.0213.161.146.2551,792
213.161.148.0213.161.152.2551,280
213.161.153.0213.161.159.2551,792

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 90.158.0.0, 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.

Check a specific address in this AS.
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