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AS7497
CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS

AS7497 announces 867,840 IPv4 addresses across 123 routed ranges, registered in CN. Figures come from the public global routing table and are refreshed daily.

868K addressesIPv4 space announced
123Routed ranges
CNRegistry country

Is AS7497 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 123 announced ranges.

Range startRange endAddresses
49.210.0.049.210.99.25525,600
49.210.100.049.210.128.2557,424
49.210.129.049.210.196.25517,408
49.210.197.049.210.255.25515,104
49.211.0.049.211.255.25565,536
60.245.128.060.245.198.25518,176
60.245.199.060.245.215.2554,352
60.245.216.060.245.255.25510,240
101.252.0.0101.253.255.255131,072
103.2.208.0103.2.211.2551,024
113.130.96.0113.130.119.2556,144
119.78.0.0119.78.2.255768
119.78.3.0119.78.7.2551,280
119.78.8.0119.78.64.25514,592
119.78.65.0119.78.85.2555,376
119.78.86.0119.78.135.25512,800
119.78.136.0119.78.163.2557,168
119.78.164.0119.78.165.255512
119.78.166.0119.78.173.2552,048
119.78.174.0119.78.214.25510,496
119.78.215.0119.78.216.255512
119.78.217.0119.78.218.255512
119.78.219.0119.78.232.2553,584
119.78.233.0119.78.234.255512
119.78.235.0119.78.239.2551,280
119.78.240.0119.78.243.2551,024
119.78.244.0119.78.251.2552,048
119.78.252.0119.78.255.2551,024
119.79.0.0119.79.255.25565,536
124.16.0.0124.16.10.2552,816
124.16.11.0124.16.11.255256
124.16.12.0124.16.15.2551,024
124.16.16.0124.16.27.2553,072
124.16.28.0124.16.29.255512
124.16.30.0124.16.31.255512
124.16.32.0124.16.79.25512,288
124.16.80.0124.16.127.25512,288
124.16.128.0124.16.134.2551,792
124.16.135.0124.16.152.2554,608
124.16.153.0124.16.154.255512
124.16.155.0124.16.171.2554,352
124.16.172.0124.16.251.25520,480
124.16.252.0124.16.253.255512
124.16.254.0124.16.255.255512
124.17.0.0124.17.13.2553,584
124.17.14.0124.17.41.2557,168
124.17.42.0124.17.90.25512,544
124.17.91.0124.17.92.255512
124.17.93.0124.17.127.2558,960
124.17.128.0124.17.255.25532,768
159.226.0.0159.226.11.2553,072
159.226.12.0159.226.14.255768
159.226.15.0159.226.17.255768
159.226.18.0159.226.47.2557,680
159.226.48.0159.226.55.2552,048
159.226.56.0159.226.60.2551,280
159.226.61.0159.226.63.255768
159.226.64.0159.226.69.2551,536
159.226.70.0159.226.77.2552,048
159.226.78.0159.226.79.255512
159.226.80.0159.226.85.2551,536
159.226.86.0159.226.97.2553,072
159.226.98.0159.226.100.255768
159.226.101.0159.226.104.2551,024
159.226.105.0159.226.112.2552,048
159.226.113.0159.226.118.2551,536
159.226.119.0159.226.121.255768
159.226.122.0159.226.133.2553,072
159.226.134.0159.226.153.2555,120
159.226.154.0159.226.182.2557,424
159.226.183.0159.226.200.2554,608
159.226.201.0159.226.205.2551,280
159.226.206.0159.226.217.2553,072
159.226.218.0159.226.219.255512
159.226.220.0159.226.222.255768
159.226.223.0159.226.224.255512
159.226.225.0159.226.226.255512
159.226.227.0159.226.228.255512
159.226.229.0159.226.233.2551,280
159.226.234.0159.226.238.2551,280
159.226.239.0159.226.249.2552,816
159.226.250.0159.226.255.2551,536
202.38.128.0202.38.129.255512
202.122.32.0202.122.39.2552,048
202.127.0.0202.127.4.2551,280
202.127.5.0202.127.6.255512
202.127.7.0202.127.7.255256
202.127.16.0202.127.31.2554,096
202.127.144.0202.127.148.2551,280
202.127.149.0202.127.151.255768
202.127.152.0202.127.153.255512
202.127.154.0202.127.159.2551,536
202.127.200.0202.127.207.2552,048
203.83.56.0203.83.63.2552,048
210.72.0.0210.72.15.2554,096
210.72.16.0210.72.68.25513,568
210.72.69.0210.72.71.255768
210.72.72.0210.72.83.2553,072
210.72.84.0210.72.89.2551,536
210.72.90.0210.72.130.25510,496

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