AS4837 CHINA169-BACKBONE

CHINA UNICOM China169 Backbone

Not flagged: treated as regular traffic

AS4837 is not on Fraudex's VPN, proxy and datacenter list, so its IPs are treated like ordinary home, mobile or business connections. A single address can still be flagged if it is a Tor exit relay.

CountryChina
IPv4 ranges765
IPv4 addresses57,233,920
IPv6 ranges271
Tor exits now0

Check an IP from AS4837

Look up any address in real time with the free IP checker, or from your own code:

curl "https://fraudex.xyz/api/check?ip=1.24.0.0" \
  -H "X-API-Key: fx_your_key"

The answer includes the network (AS4837), the country and a VPN, proxy, Tor and bot verdict, in under a millisecond. Plans start at $40 for 30 days of unlimited lookups.

IPv4 ranges announced by AS4837

Showing the first 100 of 765 ranges.

First IPLast IPCIDRAddresses
1.24.0.01.24.31.2551.24.0.0/198,192
1.24.40.01.24.79.2551.24.40.0/21, 1.24.48.0/20, 1.24.64.0/2010,240
1.24.95.01.24.191.2551.24.95.0/24, 1.24.96.0/19, 1.24.128.0/1824,832
1.24.200.01.24.215.2551.24.200.0/21, 1.24.208.0/214,096
1.24.220.01.24.235.2551.24.220.0/22, 1.24.224.0/21, 1.24.232.0/224,096
1.24.240.01.24.255.2551.24.240.0/204,096
1.25.8.01.25.23.2551.25.8.0/21, 1.25.16.0/214,096
1.25.36.01.25.39.2551.25.36.0/221,024
1.25.48.01.25.91.2551.25.48.0/20, 1.25.64.0/20, 1.25.80.0/21, 1.25.88.0/2211,264
1.25.96.01.25.127.2551.25.96.0/198,192
1.25.136.01.28.11.2551.25.136.0/21, 1.25.144.0/20, 1.25.160.0/19, 1.25.192.0/18 +3164,864
1.28.28.01.28.40.2551.28.28.0/22, 1.28.32.0/21, 1.28.40.0/243,328
1.28.43.01.28.95.2551.28.43.0/24, 1.28.44.0/22, 1.28.48.0/20, 1.28.64.0/1913,568
1.28.100.01.28.139.2551.28.100.0/22, 1.28.104.0/21, 1.28.112.0/20, 1.28.128.0/21 +110,240
1.28.144.01.28.147.2551.28.144.0/221,024
1.28.152.01.28.155.2551.28.152.0/221,024
1.28.160.01.28.167.2551.28.160.0/212,048
1.28.172.01.28.175.2551.28.172.0/221,024
1.28.180.01.28.223.2551.28.180.0/22, 1.28.184.0/21, 1.28.192.0/1911,264
1.28.228.01.30.39.2551.28.228.0/22, 1.28.232.0/21, 1.28.240.0/20, 1.29.0.0/16 +282,944
1.30.52.01.30.91.2551.30.52.0/22, 1.30.56.0/21, 1.30.64.0/20, 1.30.80.0/21 +110,240
1.30.104.01.30.160.2551.30.104.0/21, 1.30.112.0/20, 1.30.128.0/19, 1.30.160.0/2414,592
1.30.161.01.30.163.2551.30.161.0/24, 1.30.162.0/23768
1.30.168.01.30.179.2551.30.168.0/21, 1.30.176.0/223,072
1.30.188.01.31.35.2551.30.188.0/22, 1.30.192.0/18, 1.31.0.0/19, 1.31.32.0/2226,624
1.31.40.01.31.191.2551.31.40.0/21, 1.31.48.0/20, 1.31.64.0/18, 1.31.128.0/1838,912
1.31.196.01.31.255.2551.31.196.0/22, 1.31.200.0/21, 1.31.208.0/20, 1.31.224.0/1915,360
1.56.0.01.58.214.2551.56.0.0/15, 1.58.0.0/17, 1.58.128.0/18, 1.58.192.0/20 +3186,112
1.58.215.01.63.255.2551.58.215.0/24, 1.58.216.0/21, 1.58.224.0/19, 1.59.0.0/16 +1338,176
1.188.0.01.191.255.2551.188.0.0/14262,144
14.204.0.014.204.11.25514.204.0.0/21, 14.204.8.0/223,072
14.204.12.014.204.23.25514.204.12.0/22, 14.204.16.0/213,072
14.204.24.014.204.43.25514.204.24.0/21, 14.204.32.0/21, 14.204.40.0/225,120
14.204.44.014.204.63.25514.204.44.0/22, 14.204.48.0/205,120
14.204.64.014.204.211.25514.204.64.0/18, 14.204.128.0/18, 14.204.192.0/20, 14.204.208.0/2237,888
14.204.212.014.205.7.25514.204.212.0/22, 14.204.216.0/21, 14.204.224.0/19, 14.205.0.0/2113,312
14.205.8.014.205.47.25514.205.8.0/21, 14.205.16.0/20, 14.205.32.0/2010,240
14.205.48.014.205.75.25514.205.48.0/20, 14.205.64.0/21, 14.205.72.0/227,168
14.205.76.014.205.95.25514.205.76.0/22, 14.205.80.0/205,120
14.205.96.014.205.255.25514.205.96.0/19, 14.205.128.0/1740,960
27.0.128.027.0.128.25527.0.128.0/24256
27.0.130.027.0.131.25527.0.130.0/23512
27.8.0.027.15.255.25527.8.0.0/13524,288
27.50.128.027.50.255.25527.50.128.0/1732,768
27.98.224.027.98.255.25527.98.224.0/198,192
27.112.0.027.112.7.25527.112.0.0/212,048
27.192.0.027.223.1.25527.192.0.0/12, 27.208.0.0/13, 27.216.0.0/14, 27.220.0.0/15 +22,032,128
27.223.2.027.223.98.25527.223.2.0/23, 27.223.4.0/22, 27.223.8.0/21, 27.223.16.0/20 +424,832
27.223.99.027.223.102.25527.223.99.0/24, 27.223.100.0/23, 27.223.102.0/241,024
27.223.103.027.223.255.25527.223.103.0/24, 27.223.104.0/21, 27.223.112.0/20, 27.223.128.0/1739,168
36.32.64.036.32.255.25536.32.64.0/18, 36.32.128.0/1749,152
36.33.48.036.33.215.25536.33.48.0/20, 36.33.64.0/18, 36.33.128.0/18, 36.33.192.0/20 +143,008
36.33.248.036.33.255.25536.33.248.0/212,048
36.34.24.036.34.255.25536.34.24.0/21, 36.34.32.0/19, 36.34.64.0/18, 36.34.128.0/1759,392
36.35.32.036.35.247.25536.35.32.0/19, 36.35.64.0/18, 36.35.128.0/18, 36.35.192.0/19 +255,296
36.35.249.036.35.255.25536.35.249.0/24, 36.35.250.0/23, 36.35.252.0/221,792
36.50.226.036.50.226.25536.50.226.0/24256
36.51.253.036.51.253.25536.51.253.0/24256
36.248.0.036.251.255.25536.248.0.0/14262,144
39.64.0.039.95.255.25539.64.0.0/112,097,152
42.4.0.042.7.255.25542.4.0.0/14262,144
42.48.0.042.49.255.25542.48.0.0/15131,072
42.52.0.042.59.255.25542.52.0.0/14, 42.56.0.0/14524,288
42.63.0.042.63.255.25542.63.0.0/1665,536
42.84.0.042.84.175.25542.84.0.0/17, 42.84.128.0/19, 42.84.160.0/2045,056
42.84.184.042.87.255.25542.84.184.0/21, 42.84.192.0/18, 42.85.0.0/16, 42.86.0.0/15215,040
42.176.0.042.183.255.25542.176.0.0/13524,288
42.224.0.042.228.2.25542.224.0.0/14, 42.228.0.0/23, 42.228.2.0/24262,912
42.228.3.042.228.7.25542.228.3.0/24, 42.228.4.0/221,280
42.228.8.042.239.255.25542.228.8.0/21, 42.228.16.0/20, 42.228.32.0/19, 42.228.64.0/18 +4784,384
43.224.12.043.224.15.25543.224.12.0/221,024
43.224.24.043.224.27.25543.224.24.0/221,024
43.224.52.043.224.53.25543.224.52.0/23512
43.224.80.043.224.83.25543.224.80.0/221,024
43.226.116.043.226.119.25543.226.116.0/221,024
43.227.104.043.227.107.25543.227.104.0/221,024
43.239.120.043.239.123.25543.239.120.0/221,024
43.240.56.043.240.59.25543.240.56.0/221,024
43.240.204.043.240.207.25543.240.204.0/221,024
43.242.152.043.242.159.25543.242.152.0/212,048
43.242.164.043.242.167.25543.242.164.0/221,024
43.242.180.043.242.183.25543.242.180.0/221,024
43.243.4.043.243.7.25543.243.4.0/221,024
43.243.16.043.243.19.25543.243.16.0/221,024
43.243.156.043.243.159.25543.243.156.0/221,024
43.243.228.043.243.231.25543.243.228.0/221,024
43.247.4.043.247.4.25543.247.4.0/24256
43.248.108.043.248.111.25543.248.108.0/221,024
43.248.184.043.248.195.25543.248.184.0/21, 43.248.192.0/223,072
43.248.244.043.248.247.25543.248.244.0/221,024
43.249.136.043.249.139.25543.249.136.0/221,024
43.249.236.043.249.239.25543.249.236.0/221,024
43.250.4.043.250.7.25543.250.4.0/221,024
43.250.97.043.250.99.25543.250.97.0/24, 43.250.98.0/23768
43.250.112.043.250.115.25543.250.112.0/221,024
43.250.168.043.250.171.25543.250.168.0/221,024
43.250.200.043.250.203.25543.250.200.0/221,024
43.250.244.043.250.247.25543.250.244.0/221,024
43.251.4.043.251.7.25543.251.4.0/221,024
43.251.36.043.251.39.25543.251.36.0/221,024

IPv6 ranges announced by AS4837

Showing the first 30 of 271 ranges.

First IPLast IPCIDR
2402:18a0::2402:18a0:ffff:ffff:ffff:ffff:ffff:ffff2402:18a0::/32
2402:f140:ff13::2402:f140:ff14:ffff:ffff:ffff:ffff:ffff2402:f140:ff13::/48, 2402:f140:ff14::/48
2404:6500:dcb3::2404:6500:dcb3:ffff:ffff:ffff:ffff:ffff2404:6500:dcb3::/48
2405:1480:3001::2405:1480:3001:ffff:ffff:ffff:ffff:ffff2405:1480:3001::/48
2406:cac0::2406:cac0:ff:ffff:ffff:ffff:ffff:ffff2406:cac0::/40
2406:cac0:200::2406:cac0:2ff:ffff:ffff:ffff:ffff:ffff2406:cac0:200::/40
2407:6c40:1500::2407:6c40:1500:ffff:ffff:ffff:ffff:ffff2407:6c40:1500::/48
2407:6c40:1600::2407:6c40:16ff:ffff:ffff:ffff:ffff:ffff2407:6c40:1600::/40
2408:8000::2408:8000:0:ffff:ffff:ffff:ffff:ffff2408:8000::/48
2408:8000:2::2408:8000:3:ffff:ffff:ffff:ffff:ffff2408:8000:2::/47
2408:8000:10fe::2408:8000:10ff:ffff:ffff:ffff:ffff:ffff2408:8000:10fe::/47
2408:8000:2000::2408:8000:2013:ffff:ffff:ffff:ffff:ffff2408:8000:2000::/44, 2408:8000:2010::/46
2408:8000:2016::2408:8000:5003:ffff:ffff:ffff:ffff:ffff2408:8000:2016::/47, 2408:8000:2018::/45, 2408:8000:2020::/43, 2408:8000:2040::/42 +8
2408:8000:5005::2408:8000:8011:ffff:ffff:ffff:ffff:ffff2408:8000:5005::/48, 2408:8000:5006::/47, 2408:8000:5008::/45, 2408:8000:5010::/44 +10
2408:8000:8012::2408:8000:8fff:ffff:ffff:ffff:ffff:ffff2408:8000:8012::/47, 2408:8000:8014::/46, 2408:8000:8018::/45, 2408:8000:8020::/43 +6
2408:8000:a000::2408:8000:a016:ffff:ffff:ffff:ffff:ffff2408:8000:a000::/44, 2408:8000:a010::/46, 2408:8000:a014::/47, 2408:8000:a016::/48
2408:8000:a019::2408:8000:bfff:ffff:ffff:ffff:ffff:ffff2408:8000:a019::/48, 2408:8000:a01a::/47, 2408:8000:a01c::/46, 2408:8000:a020::/43 +7
2408:8000:c008::2408:8000:c037:ffff:ffff:ffff:ffff:ffff2408:8000:c008::/45, 2408:8000:c010::/44, 2408:8000:c020::/44, 2408:8000:c030::/45
2408:8000:c040::2408:8001:2fff:ffff:ffff:ffff:ffff:ffff2408:8000:c040::/42, 2408:8000:c080::/41, 2408:8000:c100::/40, 2408:8000:c200::/39 +6
2408:8001:4000::2408:8001:40ef:ffff:ffff:ffff:ffff:ffff2408:8001:4000::/41, 2408:8001:4080::/42, 2408:8001:40c0::/43, 2408:8001:40e0::/44
2408:8001:4100::2408:8001:e7ff:ffff:ffff:ffff:ffff:ffff2408:8001:4100::/40, 2408:8001:4200::/39, 2408:8001:4400::/38, 2408:8001:4800::/37 +5
2408:8001:f000::2408:8001:ffff:ffff:ffff:ffff:ffff:ffff2408:8001:f000::/36
2408:802a:8000::2408:802a:ffff:ffff:ffff:ffff:ffff:ffff2408:802a:8000::/33
2408:802c::2408:802c:ffff:ffff:ffff:ffff:ffff:ffff2408:802c::/32
2408:803e::2408:803e:ffff:ffff:ffff:ffff:ffff:ffff2408:803e::/32
2408:8056::2408:8056:ffff:ffff:ffff:ffff:ffff:ffff2408:8056::/32
2408:80c2::2408:80c2:7fff:ffff:ffff:ffff:ffff:ffff2408:80c2::/33
2408:80c5::2408:80c5:7fff:ffff:ffff:ffff:ffff:ffff2408:80c5::/33
2408:80e2::2408:80e2:7fff:ffff:ffff:ffff:ffff:ffff2408:80e2::/33
2408:80e9:4000::2408:80e9:7fff:ffff:ffff:ffff:ffff:ffff2408:80e9:4000::/34

Questions about AS4837

Is AS4837 a VPN or hosting network?

Fraudex does not list AS4837 (CHINA169-BACKBONE) as a VPN, proxy or hosting network. Its addresses are treated as regular traffic, apart from any Tor exit relays.

Which country is AS4837 registered in?

AS4837 is registered in China. Individual addresses can be used elsewhere, so check the IP itself when location matters.

How many IP addresses does AS4837 have?

It announces 765 IPv4 ranges with 57,233,920 addresses in total, plus 271 IPv6 ranges.

How do I block traffic from AS4837?

Blocking a whole network by number goes stale as ranges change hands. It is more reliable to check each visitor's IP when they sign up, log in or pay: the Fraudex API returns the network and a VPN and bot verdict, so you can block, challenge or just log flagged traffic. See why an IP blocking API pays for itself.

Other large networks in China

All networks in China →