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AS38019
CMNET-V4TIANJIN-AS-AP tianjin Mobile Communication Company Limited

AS38019 announces 284,160 IPv4 addresses across 119 routed ranges, registered in CN. Figures come from the public global routing table and are refreshed daily.

284K addressesIPv4 space announced
119Routed ranges
CNRegistry country

Is AS38019 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 119 announced ranges.

Range startRange endAddresses
36.134.64.036.134.65.255512
36.137.46.036.137.47.255512
36.138.219.036.138.219.255256
39.134.140.039.134.140.255256
39.134.142.039.134.142.255256
39.136.145.039.136.145.255256
39.137.68.039.137.70.255768
39.144.81.039.144.83.255768
111.30.0.0111.30.2.255768
111.30.3.0111.30.10.2552,048
111.30.11.0111.30.12.255512
111.30.13.0111.30.14.255512
111.30.15.0111.30.20.2551,536
111.30.21.0111.30.25.2551,280
111.30.26.0111.30.30.2551,280
111.30.31.0111.30.33.255768
111.30.34.0111.30.35.255512
111.30.36.0111.30.43.2552,048
111.30.44.0111.30.61.2554,608
111.30.62.0111.30.65.2551,024
111.30.66.0111.30.67.255512
111.30.68.0111.30.70.255768
111.30.71.0111.30.107.2559,472
111.30.108.0111.30.127.2555,120
111.30.168.0111.30.168.255256
111.30.188.0111.30.189.255512
111.30.192.0111.30.255.25516,384
111.31.13.0111.31.13.255256
111.31.24.0111.31.25.255512
111.31.28.0111.31.32.2551,280
111.31.35.0111.31.35.255256
111.31.64.0111.31.64.255256
111.31.76.0111.31.76.255256
111.31.80.0111.31.80.255256
111.31.88.0111.31.89.255512
111.31.124.0111.31.124.255256
111.31.128.0111.31.167.25510,240
111.31.168.0111.31.182.2553,840
111.31.183.0111.31.195.2553,328
111.31.197.0111.31.199.255768
111.31.204.0111.31.210.2551,792
111.31.211.0111.31.213.255768
111.31.214.0111.31.219.2551,536
111.31.220.0111.31.230.2552,816
111.31.231.0111.31.238.2552,048
111.31.240.0111.32.23.25510,240
111.32.24.0111.32.28.2551,280
111.32.29.0111.32.30.255512
111.32.31.0111.32.127.25524,832
111.33.0.0111.33.13.2553,584
111.33.14.0111.33.16.255768
111.33.17.0111.33.25.2552,304
111.33.26.0111.33.41.2554,096
111.33.42.0111.33.43.255512
111.33.44.0111.33.50.2551,792
111.33.51.0111.33.55.2551,280
111.33.56.0111.33.57.255512
111.33.58.0111.33.62.2551,280
111.33.63.0111.33.66.2551,024
111.33.67.0111.33.69.255768
111.33.70.0111.33.72.255768
111.33.73.0111.33.74.255512
111.33.76.0111.33.77.255512
111.33.78.0111.33.84.2551,792
111.33.85.0111.33.94.2552,560
111.33.95.0111.33.105.2552,816
111.33.106.0111.33.107.255512
111.33.108.0111.33.109.255512
111.33.111.0111.33.114.2551,024
111.33.115.0111.33.118.2551,024
111.33.119.0111.33.122.2551,024
111.33.126.0111.33.128.255768
111.33.129.0111.33.130.255512
111.33.131.0111.33.137.2551,792
111.33.140.0111.33.141.255512
111.33.143.0111.33.147.2551,280
111.33.148.0111.33.154.2551,792
111.33.155.0111.33.158.2551,024
111.33.160.0111.33.166.2551,792
111.33.168.0111.33.170.255768
111.33.171.0111.33.177.2551,792
111.33.178.0111.33.181.2551,024
111.33.190.0111.33.255.25516,896
112.54.240.0112.54.243.2551,024
112.57.74.0112.57.79.2551,536
117.131.128.0117.131.133.2551,536
117.131.134.0117.131.145.2553,072
117.131.146.0117.131.152.2551,792
117.131.153.0117.131.166.2553,584
117.131.167.0117.131.169.255768
117.131.170.0117.131.173.2551,024
117.131.174.0117.131.181.2552,048
117.131.182.0117.131.195.2553,584
117.131.200.0117.131.200.255256
117.131.206.0117.131.206.255256
117.131.216.0117.131.218.255768
117.131.219.0117.131.220.255512
117.131.221.0117.131.226.2551,536
117.131.227.0117.131.230.2551,024
117.131.231.0117.131.237.2551,792

Check a specific address

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