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AS4134
CHINANET-BACKBONE No.31,Jin-rong Street

AS4134 announces 99,565,056 IPv4 addresses across 3,838 routed ranges, registered in CN. Figures come from the public global routing table and are refreshed daily.

99.6M addressesIPv4 space announced
3,838Routed ranges
CNRegistry country

Is AS4134 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

First 100 of 3,838 ranges.

Range startRange endAddresses
1.48.0.01.48.63.25516,384
1.48.128.01.48.191.25516,384
1.48.224.01.49.95.25532,768
1.49.128.01.49.159.2558,192
1.49.192.01.50.255.25581,920
1.68.0.01.70.255.255196,608
1.71.32.01.71.63.2558,192
1.71.96.01.71.102.2551,792
1.71.104.01.71.118.2553,840
1.71.120.01.71.143.2556,144
1.71.168.01.71.188.2555,376
1.71.189.01.71.255.25517,152
1.80.0.01.80.255.25565,536
1.81.8.01.81.91.25521,504
1.81.94.01.82.207.25594,720
1.82.224.01.82.231.2552,048
1.83.0.01.85.9.255133,632
1.85.10.01.87.255.255194,048
1.180.0.01.183.207.255249,856
1.183.224.01.183.255.2558,192
1.192.0.01.192.187.25548,128
1.192.192.01.192.199.2552,048
1.192.204.01.193.187.25561,440
1.193.189.01.193.211.2555,888
1.193.213.01.193.218.2551,536
1.193.220.01.194.23.25515,360
1.194.32.01.194.113.25520,992
1.194.116.01.194.159.25511,264
1.194.176.01.194.191.2554,096
1.194.212.01.194.215.2551,024
1.194.224.01.195.199.25559,392
1.195.224.01.199.255.255270,336
1.204.0.01.206.127.255163,840
1.206.192.01.207.255.25581,920
14.16.0.014.17.63.25581,920
14.17.96.014.18.31.25549,152
14.18.128.014.18.135.2552,048
14.18.140.014.21.23.255166,912
14.21.28.014.21.35.2552,048
14.21.40.014.21.47.2552,048
14.21.56.014.21.79.2556,144
14.21.84.014.21.103.2555,120
14.21.108.014.21.110.255768
14.21.114.014.22.11.25539,424
14.22.16.014.22.19.2551,024
14.22.24.014.22.35.2553,072
14.22.48.014.22.48.255256
14.22.108.014.22.108.255256
14.22.128.014.25.255.255229,376
14.26.128.014.28.255.255163,840
14.29.6.014.29.8.255768
14.29.32.014.29.101.25517,920
14.29.103.014.31.9.255107,264
14.31.11.014.31.13.255768
14.31.32.014.31.255.25557,344
14.104.0.014.107.159.255237,568
14.107.164.014.107.171.2552,048
14.107.184.014.110.79.255169,984
14.110.96.014.110.119.2556,144
14.110.128.014.116.191.255409,600
14.116.224.014.116.249.2556,656
14.118.0.014.118.135.25534,816
14.118.144.014.120.159.255135,168
14.120.192.014.121.9.25518,944
14.121.11.014.121.12.255512
14.121.14.014.121.14.255256
14.121.16.014.121.22.2551,792
14.121.25.014.121.53.2557,424
14.121.55.014.124.63.255198,912
14.124.96.014.124.191.25524,576
14.124.224.014.127.255.255204,800
14.134.0.014.135.255.255131,072
14.144.128.014.146.223.255155,648
14.146.232.014.147.215.25561,440
14.147.217.014.148.31.25518,176
14.148.72.014.148.79.2552,048
14.148.88.014.148.143.25514,336
14.148.168.014.149.63.25538,912
14.149.72.014.149.127.25514,336
14.149.192.014.152.79.255167,936
14.152.96.014.159.255.255499,712
14.208.0.014.215.43.255470,016
14.215.52.014.215.161.25528,160
14.215.165.014.215.172.2552,048
14.215.175.014.215.207.2558,448
14.215.212.014.215.223.2553,072
14.215.228.014.215.229.255512
14.215.232.014.216.255.25571,680
14.217.128.014.223.255.255425,984
27.16.0.027.16.127.25532,768
27.20.0.027.21.223.255122,880
27.22.0.027.22.51.25513,312
27.22.60.027.25.127.255214,016
27.25.129.027.25.129.255256
27.25.131.027.25.131.255256
27.25.133.027.25.147.2553,840
27.25.149.027.25.150.255512
27.25.153.027.25.154.255512
27.25.156.027.30.75.255307,200
27.30.78.027.31.255.255111,104

Check a specific address

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