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AS45102
ALIBABA-CN-NET Alibaba US Technology Co., Ltd.

AS45102 announces 5,571,584 IPv4 addresses across 179 routed ranges, registered in CN. Figures come from the public global routing table and are refreshed daily.

5.6M addressesIPv4 space announced
179Routed ranges
CNRegistry country

Is AS45102 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 checks any address against the Tor exit list and the published cloud-provider ranges. VPN and proxy verdicts need a live visit: they come from a /v1/evaluate call with the browser token, not from a bare 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.

Maskbreak 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 179 announced ranges.

Range startRange endAddresses
5.181.224.05.181.225.255512
8.208.0.08.208.63.25516,384
8.208.64.08.208.135.25518,432
8.208.140.08.208.141.255512
8.208.142.08.209.31.25537,376
8.209.36.08.209.192.25540,192
8.209.194.08.210.240.25577,568
8.210.241.08.211.226.25561,952
8.211.227.08.211.227.255256
8.211.232.08.212.92.25529,952
8.212.94.08.212.99.2551,536
8.212.104.08.212.183.25520,480
8.212.188.08.213.123.25549,152
8.213.124.08.213.253.25533,280
8.213.254.08.214.159.25541,472
8.214.164.08.215.160.25564,768
8.215.161.08.215.163.255768
8.215.168.08.215.169.255512
8.215.170.08.216.69.25539,936
8.216.70.08.216.74.2551,280
8.216.75.08.216.75.255256
8.216.80.08.216.148.25517,664
8.216.149.08.219.47.255170,752
8.219.48.08.220.116.25583,200
8.220.117.08.220.123.2551,792
8.220.128.08.220.147.2555,120
8.220.148.08.220.167.2555,120
8.220.171.08.220.229.25515,104
8.220.230.08.220.235.2551,536
8.220.240.08.220.247.2552,048
8.221.0.08.221.15.2554,096
8.221.16.08.221.151.25534,816
8.221.156.08.223.255.255156,672
43.90.0.043.90.255.25565,536
43.92.0.043.94.63.255147,456
43.96.3.043.96.8.2551,536
43.96.10.043.96.11.255512
43.96.20.043.96.21.255512
43.96.23.043.96.25.255768
43.96.32.043.96.35.2551,024
43.96.40.043.96.40.255256
43.96.42.043.96.42.255256
43.96.44.043.96.46.255768
43.96.48.043.96.55.2552,048
43.96.59.043.96.60.255512
43.96.62.043.96.75.2553,584
43.96.78.043.96.78.255256
43.96.80.043.96.81.255512
43.96.85.043.96.85.255256
43.96.88.043.96.90.255768
43.96.92.043.96.95.2551,024
43.96.97.043.96.97.255256
43.96.100.043.96.101.255512
43.96.103.043.96.105.255768
43.96.107.043.96.107.255256
43.96.109.043.96.116.2552,048
43.96.118.043.96.120.255768
43.96.122.043.96.122.255256
43.96.124.043.96.124.255256
43.97.0.043.97.127.25532,768
43.98.0.043.102.24.146268,435
43.102.24.14743.102.127.25526,477
43.102.192.043.108.199.255395,264
43.108.200.043.108.255.25514,336
43.110.0.043.110.227.25558,368
43.110.228.043.112.135.255107,520
43.112.136.043.114.131.255130,048
43.114.132.043.114.255.25531,744
43.116.0.043.116.96.7824,655
43.116.96.7943.116.127.2558,113
43.116.192.043.118.168.255125,184
43.118.169.043.118.191.2555,888
43.119.0.043.123.191.255311,296
43.124.0.043.125.55.25579,872
43.126.0.043.126.127.25532,768
45.199.179.045.199.179.255256
47.52.0.047.52.255.25565,536
47.56.0.047.57.196.255115,968
47.57.198.047.57.255.25514,848
47.74.0.047.74.103.25526,624
47.74.104.047.74.165.25515,872
47.74.166.047.77.27.255161,280
47.77.32.047.77.113.25520,992
47.77.128.047.77.159.2558,192
47.77.160.047.79.83.255111,616
47.79.84.047.85.115.255401,408
47.85.116.047.85.129.2553,584
47.85.131.047.87.4.25598,816
47.87.5.047.87.23.2554,864
47.87.32.047.87.42.2552,816
47.87.43.047.87.71.2557,424
47.87.80.047.87.151.25518,432
47.87.156.047.88.43.25536,864
47.88.44.047.88.109.25516,896
47.88.110.047.88.135.2556,656
47.88.136.047.89.63.25547,104
47.89.72.047.89.84.2553,328
47.89.88.047.89.90.255768
47.89.92.047.89.111.2555,120
47.89.122.047.89.125.2551,024

Check a specific address

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