AS7203 LEASEWEB-USA-SFO

Flagged: hosting, VPN or proxy network

Fraudex lists AS7203 as infrastructure that real customers rarely browse from: servers, VPN exits, proxies or bot networks. Every IP announced by this network comes back from /api/check with "is_bot": true.

CountryUnited States
IPv4 ranges94
IPv4 addresses187,648
IPv6 ranges5
Tor exits now0

Check an IP from AS7203

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

curl "https://fraudex.xyz/api/check?ip=23.19.88.0" \
  -H "X-API-Key: fx_your_key"

The answer includes the network (AS7203), 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 AS7203

First IPLast IPCIDRAddresses
23.19.88.023.19.95.25523.19.88.0/212,048
23.19.160.023.19.167.25523.19.160.0/212,048
23.19.198.023.19.198.25523.19.198.0/24256
23.19.212.023.19.215.25523.19.212.0/221,024
23.19.252.023.19.255.25523.19.252.0/221,024
23.81.8.023.81.15.25523.81.8.0/212,048
23.81.84.023.81.87.25523.81.84.0/221,024
23.81.96.023.81.119.25523.81.96.0/20, 23.81.112.0/216,144
23.81.160.023.81.171.25523.81.160.0/21, 23.81.168.0/223,072
23.81.176.023.81.183.25523.81.176.0/212,048
23.81.200.023.81.203.25523.81.200.0/221,024
23.81.220.023.81.223.25523.81.220.0/221,024
23.82.0.023.82.7.25523.82.0.0/212,048
23.82.16.023.82.31.25523.82.16.0/204,096
23.82.48.023.82.51.25523.82.48.0/221,024
23.82.56.023.82.59.25523.82.56.0/221,024
23.82.64.023.82.71.25523.82.64.0/212,048
23.82.88.023.82.103.25523.82.88.0/21, 23.82.96.0/214,096
23.82.112.023.82.119.25523.82.112.0/212,048
23.82.124.023.82.127.25523.82.124.0/221,024
23.82.132.023.82.135.25523.82.132.0/221,024
23.82.168.023.82.183.25523.82.168.0/21, 23.82.176.0/214,096
23.82.236.023.82.239.25523.82.236.0/221,024
23.83.152.023.83.167.25523.83.152.0/21, 23.83.160.0/214,096
23.83.176.023.83.183.25523.83.176.0/212,048
23.105.16.023.105.31.25523.105.16.0/204,096
23.105.96.023.105.127.25523.105.96.0/198,192
23.106.44.023.106.47.25523.106.44.0/221,024
23.106.88.023.106.95.25523.106.88.0/212,048
23.106.160.023.106.175.25523.106.160.0/204,096
23.106.184.023.106.191.25523.106.184.0/212,048
23.108.108.023.108.123.25523.108.108.0/22, 23.108.112.0/21, 23.108.120.0/224,096
23.108.160.023.108.199.25523.108.160.0/19, 23.108.192.0/2110,240
23.108.204.023.108.207.25523.108.204.0/221,024
64.64.20.064.64.31.25564.64.20.0/22, 64.64.24.0/213,072
67.201.40.067.201.40.25567.201.40.0/24256
69.174.60.069.174.63.25569.174.60.0/221,024
72.37.218.072.37.219.25572.37.218.0/23512
72.37.221.072.37.231.25572.37.221.0/24, 72.37.222.0/23, 72.37.224.0/212,816
72.37.237.072.37.237.25572.37.237.0/24256
108.62.160.0108.62.163.255108.62.160.0/221,024
108.62.244.0108.62.245.255108.62.244.0/23512
108.177.160.0108.177.167.255108.177.160.0/212,048
142.91.24.0142.91.39.255142.91.24.0/21, 142.91.32.0/214,096
142.91.136.0142.91.143.255142.91.136.0/212,048
142.91.168.0142.91.175.255142.91.168.0/212,048
142.91.212.0142.91.215.255142.91.212.0/221,024
142.234.8.0142.234.15.255142.234.8.0/212,048
142.234.48.0142.234.59.255142.234.48.0/21, 142.234.56.0/223,072
142.234.80.0142.234.87.255142.234.80.0/212,048
142.234.96.0142.234.103.255142.234.96.0/212,048
142.234.120.0142.234.135.255142.234.120.0/21, 142.234.128.0/214,096
142.234.144.0142.234.151.255142.234.144.0/212,048
142.234.192.0142.234.199.255142.234.192.0/212,048
147.255.16.0147.255.23.255147.255.16.0/212,048
147.255.48.0147.255.63.255147.255.48.0/204,096
147.255.112.0147.255.115.255147.255.112.0/221,024
147.255.120.0147.255.127.255147.255.120.0/212,048
147.255.160.0147.255.167.255147.255.160.0/212,048
147.255.176.0147.255.191.255147.255.176.0/204,096
152.163.8.0152.163.11.255152.163.8.0/221,024
152.163.28.0152.163.31.255152.163.28.0/221,024
152.163.52.0152.163.55.255152.163.52.0/221,024
152.163.128.0152.163.131.255152.163.128.0/221,024
152.163.156.0152.163.159.255152.163.156.0/221,024
152.163.180.0152.163.183.255152.163.180.0/221,024
152.163.204.0152.163.207.255152.163.204.0/221,024
152.163.232.0152.163.235.255152.163.232.0/221,024
172.241.8.0172.241.15.255172.241.8.0/212,048
172.241.56.0172.241.63.255172.241.56.0/212,048
172.241.72.0172.241.79.255172.241.72.0/212,048
172.241.104.0172.241.111.255172.241.104.0/212,048
172.241.124.0172.241.127.255172.241.124.0/221,024
172.241.172.0172.241.175.255172.241.172.0/221,024
172.241.196.0172.241.199.255172.241.196.0/221,024
172.241.204.0172.241.211.255172.241.204.0/22, 172.241.208.0/222,048
172.241.248.0172.241.255.255172.241.248.0/212,048
172.255.24.0172.255.39.255172.255.24.0/21, 172.255.32.0/214,096
172.255.112.0172.255.127.255172.255.112.0/204,096
173.208.122.0173.208.122.255173.208.122.0/24256
173.234.92.0173.234.95.255173.234.92.0/221,024
173.234.112.0173.234.115.255173.234.112.0/221,024
179.61.166.0179.61.166.255179.61.166.0/24256
179.61.245.0179.61.245.255179.61.245.0/24256
191.96.130.0191.96.130.255191.96.130.0/24256
191.101.41.0191.101.41.255191.101.41.0/24256
199.38.112.0199.38.115.255199.38.112.0/221,024
199.167.46.0199.167.47.255199.167.46.0/23512
199.223.208.0199.223.211.255199.223.208.0/221,024
206.214.208.0206.214.215.255206.214.208.0/212,048
209.58.128.0209.58.143.255209.58.128.0/204,096
212.42.197.0212.42.197.255212.42.197.0/24256
212.42.205.0212.42.205.255212.42.205.0/24256
216.22.38.0216.22.39.255216.22.38.0/23512

IPv6 ranges announced by AS7203

First IPLast IPCIDR
2605:fe80::2605:fe80:fffe:ffff:ffff:ffff:ffff:ffff2605:fe80::/33, 2605:fe80:8000::/34, 2605:fe80:c000::/35, 2605:fe80:e000::/36 +12
2605:fe80:ffff::2605:fe80:ffff:ffff:ffff:ffff:ffff:ffff2605:fe80:ffff::/48
2a0f:1e84::2a0f:1e84:1f:ffff:ffff:ffff:ffff:ffff2a0f:1e84::/43
2a0f:1e84:21::2a0f:1e84:3e:ffff:ffff:ffff:ffff:ffff2a0f:1e84:21::/48, 2a0f:1e84:22::/47, 2a0f:1e84:24::/46, 2a0f:1e84:28::/45 +4
2a0f:1e84:40::2a0f:1e84:ffff:ffff:ffff:ffff:ffff:ffff2a0f:1e84:40::/42, 2a0f:1e84:80::/41, 2a0f:1e84:100::/40, 2a0f:1e84:200::/39 +6

Questions about AS7203

Is AS7203 a VPN or hosting network?

Yes. Fraudex lists AS7203 (LEASEWEB-USA-SFO) among the hosting, VPN, proxy and bot networks it flags, so visitors from it are usually servers or people hiding their real location rather than ordinary customers.

Which country is AS7203 registered in?

AS7203 is registered in United States. Individual addresses can be used elsewhere, so check the IP itself when location matters.

How many IP addresses does AS7203 have?

It announces 94 IPv4 ranges with 187,648 addresses in total, plus 5 IPv6 ranges.

How do I block traffic from AS7203?

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.

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