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AS600
OARNET-AS

AS600 announces 921,052 IPv4 addresses across 107 routed ranges, registered in US. Figures come from the public global routing table and are refreshed daily.

921K addressesIPv4 space announced
107Routed ranges
USRegistry country

Is AS600 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 107 announced ranges.

Range startRange endAddresses
64.254.64.064.254.79.2554,096
130.108.0.0130.108.72.25518,688
130.108.74.0130.108.103.2557,680
130.108.106.0130.108.120.2553,840
130.108.122.0130.108.252.25533,536
130.108.254.0130.108.255.255512
131.187.0.0131.187.131.25533,792
131.187.136.0131.187.184.25512,544
131.187.185.32131.187.223.2559,952
131.187.233.0131.187.247.2553,840
131.187.252.0131.187.255.2551,024
131.238.28.0131.238.28.255256
136.227.0.0136.227.60.25515,616
136.227.61.0136.227.63.255768
136.227.128.0136.227.135.2552,048
140.141.0.0140.141.127.25532,768
140.220.0.0140.220.255.25565,536
140.228.0.0140.228.15.2554,096
143.246.0.0143.246.47.25512,288
143.246.49.0143.246.49.255256
143.246.52.0143.246.55.2551,024
143.246.64.0143.246.127.25516,384
144.50.0.0144.50.255.25565,536
146.85.0.0146.85.63.25516,384
146.85.160.0146.85.191.2558,192
146.85.224.0146.85.255.2558,192
156.63.208.0156.63.208.255256
157.134.0.0157.134.239.25561,440
157.134.248.0157.134.255.2552,048
163.11.0.0163.11.255.25565,536
192.68.223.0192.68.223.255256
192.88.193.0192.88.195.255768
192.131.123.0192.131.123.255256
192.148.235.0192.148.237.255768
192.148.238.0192.148.239.255512
192.148.241.0192.148.241.255256
192.148.243.0192.148.245.255768
192.148.251.0192.148.251.255256
192.150.115.0192.150.115.255256
192.153.27.0192.153.32.2551,536
192.153.33.0192.153.33.255256
192.153.35.0192.153.40.2551,536
192.153.41.0192.153.41.255256
192.232.16.0192.232.19.2551,024
192.232.20.0192.232.31.2553,072
198.30.0.0198.30.12.2553,328
198.30.14.0198.30.55.25510,752
198.30.64.0198.30.80.2554,352
198.30.82.0198.30.87.2551,536
198.30.90.0198.30.130.25510,496
198.30.133.0198.30.153.2555,376
198.30.156.0198.30.159.2551,024
198.30.168.0198.30.179.2553,072
198.30.184.0198.30.186.255768
198.30.188.0198.30.199.2553,072
198.30.204.0198.30.227.2556,144
198.30.231.0198.30.255.2556,400
199.18.0.0199.18.13.2553,584
199.18.15.0199.18.47.2558,448
199.18.49.0199.18.52.2551,024
199.18.54.0199.18.58.2551,280
199.18.60.0199.18.70.2552,816
199.18.72.0199.18.80.2552,304
199.18.82.0199.18.93.2553,072
199.18.95.0199.18.138.25511,264
199.18.140.0199.18.141.255512
199.18.142.0199.18.168.116,668
199.18.168.16199.18.241.25518,928
199.18.243.0199.18.255.2553,328
199.120.181.0199.120.181.255256
199.218.0.0199.218.127.25532,768
199.218.128.0199.218.248.25530,976
199.218.250.0199.218.255.2551,536
204.57.8.0204.57.15.2552,048
204.128.217.0204.128.217.255256
205.133.0.0205.133.75.25519,456
205.133.78.0205.133.85.2552,048
205.133.86.0205.133.151.25516,896
205.133.184.0205.133.215.2558,192
205.133.224.0205.133.232.2552,304
205.133.233.0205.133.255.2555,888
206.21.0.0206.21.13.2553,584
206.21.15.0206.21.51.2559,472
206.21.53.0206.21.55.255768
206.21.64.0206.21.89.2556,656
206.21.90.0206.21.103.2553,584
206.21.106.0206.21.159.25513,824
206.21.172.0206.21.255.25521,504
206.244.0.0206.244.89.25523,040
206.244.90.0206.244.163.25518,944
206.244.168.0206.244.255.25522,528
208.108.0.0208.108.5.2551,536
208.108.6.0208.108.7.255512
208.108.8.0208.108.11.2551,024
208.108.12.0208.108.44.2558,448
208.108.45.0208.108.48.2551,024
208.108.49.0208.108.50.255512
208.108.51.0208.108.52.255512
208.108.53.0208.108.54.255512
208.108.55.0208.108.58.2551,024

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 64.254.64.0, 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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