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HomeAll IP Ranges51.0.0.0/8
13,396,973 flagged8 datasets
/8 block

51.0.0.0/8

Browse all /16 subnets inside this block, down to the /24 subnets. Click on any /16 CIDR entry to jump to its /24 list.

51.0.0.0/16Residential Proxy100.00%836,90056.31%42 / 8
51.1.0.0/16Hosting100.00%065,536100.00%11 / 8
51.2.0.0/16—000.00%00 / 8
51.3.0.0/16Hosting100.00%065,536100.00%11 / 8
51.4.0.0/16VPN94.37%7165,536100.00%33 / 8
51.5.0.0/16Hosting100.00%065,536100.00%11 / 8
51.6.0.0/16Residential Proxy85.20%2,79013,82424.30%795 / 8
51.7.0.0/16Residential Proxy89.36%2,7559,47217.89%694 / 8
51.8.0.0/16VPN96.97%6665,536100.00%33 / 8
51.9.0.0/16Residential Proxy87.05%3,32915,61627.43%724 / 8
51.10.0.0/16VPN100.00%165,536100.00%22 / 8
51.11.0.0/16VPN97.47%19865,536100.00%54 / 8
51.12.0.0/16VPN94.44%3665,536100.00%54 / 8
51.13.0.0/16VPN92.19%6465,536100.00%54 / 8
51.14.0.0/16Residential Proxy91.79%3,36165,536100.00%826 / 8
51.15.0.0/16VPN97.21%10,69665,536100.00%745 / 8
51.16.0.0/16VPN76.67%24065,536100.00%53 / 8
51.17.0.0/16VPN75.07%37765,536100.00%53 / 8
51.18.0.0/16Hosting100.00%011,26417.19%11 / 8
51.19.0.0/16—000.00%00 / 8
51.20.0.0/16Datacenter Proxy67.35%82465,536100.00%134 / 8
51.21.0.0/16Datacenter Proxy66.01%60665,536100.00%104 / 8
51.22.0.0/16Hosting100.00%065,536100.00%11 / 8
51.23.0.0/16Hosting100.00%065,536100.00%11 / 8
51.24.0.0/16VPN75.33%45065,536100.00%84 / 8
51.25.0.0/16Hosting100.00%065,536100.00%11 / 8
51.26.0.0/16Hosting100.00%065,536100.00%11 / 8
51.27.0.0/16Hosting100.00%065,536100.00%11 / 8
51.28.0.0/16Hosting100.00%065,536100.00%11 / 8
51.29.0.0/16Hosting100.00%065,536100.00%11 / 8
51.30.0.0/16Hosting100.00%065,536100.00%11 / 8
51.31.0.0/16Hosting100.00%065,536100.00%11 / 8
51.32.0.0/16Hosting100.00%065,536100.00%11 / 8
51.33.0.0/16—000.00%00 / 8
51.34.0.0/16VPN56.77%19265,536100.00%114 / 8
51.35.0.0/16Hosting100.00%065,536100.00%11 / 8
51.36.0.0/16Residential Proxy99.63%40,3401,28062.28%965 / 8
51.37.0.0/16Residential Proxy97.52%26,0028,96047.87%1044 / 8
51.38.0.0/16VPN89.07%1,83965,536100.00%575 / 8
51.39.0.0/16Residential Proxy99.49%31,73051248.87%914 / 8
51.40.0.0/16Hosting100.00%065,536100.00%11 / 8
51.41.0.0/16Hosting100.00%065,536100.00%11 / 8
51.42.0.0/16Hosting100.00%065,536100.00%11 / 8
51.43.0.0/16Hosting100.00%065,536100.00%11 / 8
51.44.0.0/16VPN90.29%3,76065,536100.00%225 / 8
51.45.0.0/16VPN61.83%13165,536100.00%54 / 8
51.46.0.0/16Hosting100.00%065,536100.00%11 / 8
51.47.0.0/16Hosting100.00%065,536100.00%11 / 8
51.48.0.0/16VPN62.22%13565,536100.00%114 / 8
51.49.0.0/16Datacenter Proxy51.43%17565,536100.00%134 / 8
51.50.0.0/16Hosting100.00%065,536100.00%11 / 8
51.51.0.0/16Hosting100.00%065,536100.00%11 / 8
51.52.0.0/16VPN97.75%7,92848,89675.10%334 / 8
51.53.0.0/16VPN100.00%27265,536100.00%22 / 8
51.54.0.0/16VPN100.00%1665,536100.00%22 / 8
51.55.0.0/16VPN100.00%865,536100.00%22 / 8
51.56.0.0/16Hosting100.00%065,536100.00%11 / 8
51.57.0.0/16Datacenter Proxy54.55%1165,536100.00%33 / 8
51.58.0.0/16VPN88.89%965,536100.00%33 / 8
51.59.0.0/16Hosting100.00%065,536100.00%11 / 8
51.60.0.0/16Hosting100.00%065,536100.00%11 / 8
51.61.0.0/16Hosting100.00%065,536100.00%11 / 8
51.62.0.0/16—000.00%00 / 8
51.63.0.0/16—000.00%00 / 8
51.64.0.0/16—000.00%00 / 8
51.65.0.0/16—000.00%00 / 8
51.66.0.0/16—000.00%00 / 8
51.67.0.0/16—000.00%00 / 8
51.68.0.0/16VPN87.77%1,52165,536100.00%696 / 8
51.69.0.0/16Hosting100.00%065,536100.00%11 / 8
51.70.0.0/16Hosting100.00%065,536100.00%11 / 8
51.71.0.0/16—000.00%00 / 8
51.72.0.0/16VPN100.00%565,536100.00%22 / 8
51.73.0.0/16Hosting100.00%065,536100.00%11 / 8
51.74.0.0/16Hosting100.00%037,37657.03%22 / 8
51.75.0.0/16VPN96.19%4,09565,536100.00%555 / 8
51.76.0.0/16Hosting100.00%065,536100.00%11 / 8
51.77.0.0/16VPN87.05%95065,536100.00%525 / 8
51.78.0.0/16Hosting100.00%065,536100.00%11 / 8
51.79.0.0/16VPN87.41%92965,536100.00%525 / 8
51.80.0.0/16Hosting100.00%065,536100.00%11 / 8
51.81.0.0/16VPN90.04%1,82865,536100.00%395 / 8
51.82.0.0/16Hosting100.00%065,536100.00%11 / 8
51.83.0.0/16VPN89.07%1,18065,536100.00%605 / 8
51.84.0.0/16VPN72.18%36365,536100.00%63 / 8
51.85.0.0/16VPN69.96%22365,536100.00%53 / 8
51.86.0.0/16Hosting100.00%065,536100.00%11 / 8
51.87.0.0/16Hosting100.00%065,536100.00%11 / 8
51.88.0.0/16Hosting100.00%065,536100.00%11 / 8
51.89.0.0/16VPN96.41%2,67565,536100.00%515 / 8
51.90.0.0/16Hosting100.00%065,536100.00%11 / 8
51.91.0.0/16VPN78.25%69965,536100.00%445 / 8
51.92.0.0/16VPN48.84%12965,536100.00%144 / 8
51.93.0.0/16Hosting100.00%065,536100.00%11 / 8
51.94.0.0/16VPN57.26%11765,536100.00%94 / 8
51.95.0.0/16VPN71.43%7765,536100.00%94 / 8
51.96.0.0/16VPN61.44%23665,536100.00%104 / 8
51.97.0.0/16Hosting100.00%065,536100.00%11 / 8
51.98.0.0/16Hosting100.00%065,536100.00%11 / 8
51.99.0.0/16Hosting100.00%065,536100.00%11 / 8
51.100.0.0/16Hosting100.00%065,536100.00%11 / 8
51.101.0.0/16Hosting100.00%065,536100.00%11 / 8
51.102.0.0/16VPN51.85%51365,536100.00%104 / 8
51.103.0.0/16VPN97.97%24665,536100.00%43 / 8
51.104.0.0/16VPN96.20%15865,536100.00%43 / 8
51.105.0.0/16VPN98.33%18065,536100.00%43 / 8
51.106.0.0/16Hosting100.00%065,536100.00%11 / 8
51.107.0.0/16VPN96.40%11165,536100.00%33 / 8
51.108.0.0/16Hosting100.00%065,536100.00%11 / 8
51.109.0.0/16Hosting100.00%065,536100.00%11 / 8
51.110.0.0/16Hosting100.00%065,536100.00%11 / 8
51.111.0.0/16Hosting100.00%065,536100.00%11 / 8
51.112.0.0/16VPN89.74%3965,536100.00%54 / 8
51.113.0.0/16Hosting100.00%065,536100.00%11 / 8
51.114.0.0/16Hosting100.00%065,536100.00%11 / 8
51.115.0.0/16Hosting100.00%065,536100.00%11 / 8
51.116.0.0/16VPN98.13%16065,536100.00%44 / 8
51.117.0.0/16Hosting100.00%065,536100.00%11 / 8
51.118.0.0/16VPN79.51%24465,536100.00%114 / 8
51.119.0.0/16Hosting100.00%065,536100.00%11 / 8
51.120.0.0/16VPN97.27%11065,536100.00%44 / 8
51.121.0.0/16Hosting100.00%065,536100.00%11 / 8
51.122.0.0/16Hosting100.00%065,536100.00%11 / 8
51.123.0.0/16Hosting100.00%065,536100.00%11 / 8
51.124.0.0/16VPN96.97%13265,536100.00%54 / 8
51.125.0.0/16Hosting100.00%065,536100.00%11 / 8
51.126.0.0/16Hosting100.00%065,536100.00%11 / 8
51.127.0.0/16Hosting100.00%065,536100.00%11 / 8
51.128.0.0/16Hosting100.00%065,536100.00%11 / 8
51.129.0.0/16Hosting100.00%065,536100.00%11 / 8
51.130.0.0/16—000.00%00 / 8
51.131.0.0/16Hosting100.00%065,536100.00%11 / 8
51.132.0.0/16VPN98.90%18165,536100.00%43 / 8
51.133.0.0/16—000.00%00 / 8
51.134.0.0/16Hosting100.00%065,536100.00%11 / 8
51.135.0.0/16Hosting100.00%065,536100.00%11 / 8
51.136.0.0/16VPN98.90%9165,536100.00%33 / 8
51.137.0.0/16VPN98.41%12665,536100.00%33 / 8
51.138.0.0/16VPN98.82%16965,536100.00%44 / 8
51.139.0.0/16Hosting100.00%065,536100.00%11 / 8
51.140.0.0/16VPN95.61%29665,536100.00%53 / 8
51.141.0.0/16VPN99.33%15065,536100.00%33 / 8
51.142.0.0/16VPN95.33%15065,536100.00%64 / 8
51.143.0.0/16VPN97.40%19265,536100.00%43 / 8
51.144.0.0/16VPN100.00%16465,536100.00%22 / 8
51.145.0.0/16VPN98.96%19365,536100.00%33 / 8
51.146.0.0/16Residential Proxy93.85%1,47918,43229.25%605 / 8
51.147.0.0/16—000.00%00 / 8
51.148.0.0/16VPN95.07%3,99729,69645.87%315 / 8
51.149.0.0/16VPN85.45%552,3043.57%63 / 8
51.150.0.0/16Hosting100.00%065,536100.00%11 / 8
51.151.0.0/16Hosting100.00%065,536100.00%11 / 8
51.152.0.0/16Hosting100.00%065,536100.00%11 / 8
51.153.0.0/16Hosting100.00%065,536100.00%11 / 8
51.154.0.0/16Residential Proxy72.16%1,32211,00818.37%684 / 8
51.155.0.0/16VPN96.05%11,10256,83287.10%444 / 8
51.156.0.0/16Hosting100.00%065,536100.00%11 / 8
51.157.0.0/16Hosting100.00%065,536100.00%11 / 8
51.158.0.0/16VPN98.30%12,36065,536100.00%896 / 8
51.159.0.0/16VPN92.00%2,53765,536100.00%716 / 8
51.160.0.0/16Hosting100.00%065,536100.00%11 / 8
51.161.0.0/16VPN95.66%76065,536100.00%365 / 8
51.162.0.0/16VPN98.13%16035,84054.69%33 / 8
51.163.0.0/16VPN100.00%20615,61623.84%22 / 8
51.164.0.0/16Hosting100.00%065,536100.00%11 / 8
51.165.0.0/16Hosting100.00%065,536100.00%11 / 8
51.166.0.0/16Hosting100.00%065,536100.00%11 / 8
51.167.0.0/16Hosting100.00%065,536100.00%11 / 8
51.168.0.0/16Hosting100.00%065,536100.00%11 / 8
51.169.0.0/16Hosting100.00%065,536100.00%11 / 8
51.170.0.0/16Datacenter Proxy63.95%8637,37657.03%84 / 8
51.171.0.0/16Residential Proxy56.25%5,61827,90444.93%854 / 8
51.172.0.0/16Hosting100.00%065,536100.00%11 / 8
51.173.0.0/16Hosting100.00%065,536100.00%11 / 8
51.174.0.0/16Residential Proxy75.46%1,4593,3287.17%734 / 8
51.175.0.0/16Residential Proxy56.47%7194,6088.02%555 / 8
51.176.0.0/16Hosting100.00%065,536100.00%11 / 8
51.177.0.0/16Hosting100.00%065,536100.00%11 / 8
51.178.0.0/16VPN78.51%69865,536100.00%396 / 8
51.179.0.0/16Residential Proxy90.57%4,8477,93618.91%925 / 8
51.180.0.0/16Hosting100.00%065,536100.00%11 / 8
51.181.0.0/16Hosting100.00%065,536100.00%11 / 8
51.182.0.0/16Residential Proxy97.20%2,4252564.08%794 / 8
51.183.0.0/16Residential Proxy97.99%74501.14%573 / 8
51.184.0.0/16Hosting100.00%065,536100.00%11 / 8
51.185.0.0/16Hosting100.00%065,536100.00%11 / 8
51.186.0.0/16Residential Proxy97.93%2,2175124.13%744 / 8
51.187.0.0/16Residential Proxy98.46%1,8822563.25%804 / 8
51.188.0.0/16Hosting100.00%065,536100.00%11 / 8
51.189.0.0/16Hosting100.00%065,536100.00%11 / 8
51.190.0.0/16Residential Proxy95.72%2,5932,3047.29%694 / 8
51.191.0.0/16Residential Proxy84.55%2,8415,88812.76%794 / 8
51.192.0.0/16Hosting100.00%065,536100.00%11 / 8
51.193.0.0/16Hosting100.00%065,536100.00%11 / 8
51.194.0.0/16Residential Proxy93.00%3,58612,03223.52%734 / 8
51.195.0.0/16VPN80.06%2,58865,536100.00%635 / 8
51.196.0.0/16Hosting100.00%065,536100.00%11 / 8
51.197.0.0/16Hosting100.00%065,536100.00%11 / 8
51.198.0.0/16Residential Proxy92.68%1,5314,0968.47%674 / 8
51.199.0.0/16Residential Proxy98.33%1,9202,0486.03%684 / 8
51.200.0.0/16VPN100.00%665,536100.00%22 / 8
51.201.0.0/16VPN100.00%465,536100.00%22 / 8
51.202.0.0/16VPN100.00%265,536100.00%22 / 8
51.203.0.0/16Hosting100.00%065,536100.00%11 / 8
51.204.0.0/16Hosting100.00%065,536100.00%11 / 8
51.205.0.0/16Hosting100.00%065,536100.00%11 / 8
51.206.0.0/16Hosting100.00%065,536100.00%11 / 8
51.207.0.0/16Hosting100.00%065,536100.00%11 / 8
51.208.0.0/16Hosting100.00%065,536100.00%11 / 8
51.209.0.0/16Hosting100.00%065,536100.00%11 / 8
51.210.0.0/16VPN73.44%71965,536100.00%376 / 8
51.211.0.0/16Residential Proxy98.03%22,37932,00055.13%1105 / 8
51.212.0.0/16Hosting100.00%065,536100.00%11 / 8
51.213.0.0/16Hosting100.00%065,536100.00%11 / 8
51.214.0.0/16Hosting100.00%065,536100.00%11 / 8
51.215.0.0/16Hosting100.00%065,536100.00%11 / 8
51.216.0.0/16Hosting100.00%065,536100.00%11 / 8
51.217.0.0/16Hosting100.00%065,536100.00%11 / 8
51.218.0.0/16Residential Proxy100.00%800.01%61 / 8
51.219.0.0/16VPN97.56%8,90853,24881.54%294 / 8
51.220.0.0/16Hosting100.00%065,536100.00%11 / 8
51.221.0.0/16Hosting100.00%065,536100.00%11 / 8
51.222.0.0/16VPN85.31%59965,536100.00%355 / 8
51.223.0.0/16Residential Proxy99.54%27,02139,16861.47%1055 / 8
51.224.0.0/16VPN79.14%13965,536100.00%53 / 8
51.225.0.0/16VPN72.73%5565,536100.00%53 / 8
51.226.0.0/16—000.00%00 / 8
51.227.0.0/16—000.00%00 / 8
51.228.0.0/16Hosting100.00%065,536100.00%11 / 8
51.229.0.0/16Hosting100.00%065,536100.00%11 / 8
51.230.0.0/16VPN62.07%2900.04%63 / 8
51.231.0.0/16—000.00%00 / 8
51.232.0.0/16Hosting100.00%065,536100.00%11 / 8
51.233.0.0/16Hosting100.00%065,536100.00%11 / 8
51.234.0.0/16—000.00%00 / 8
51.235.0.0/16Residential Proxy99.41%47,94511,77681.89%1055 / 8
51.236.0.0/16Hosting100.00%065,536100.00%11 / 8
51.237.0.0/16Hosting100.00%065,536100.00%11 / 8
51.238.0.0/16—000.00%00 / 8
51.239.0.0/16—000.00%00 / 8
51.240.0.0/16Hosting100.00%065,536100.00%11 / 8
51.241.0.0/16Residential Proxy87.86%3,64228,16046.91%714 / 8
51.242.0.0/16—000.00%00 / 8
51.243.0.0/16—000.00%00 / 8
51.244.0.0/16Hosting100.00%065,536100.00%11 / 8
51.245.0.0/16Hosting100.00%065,536100.00%11 / 8
51.246.0.0/16—000.00%00 / 8
51.247.0.0/16—000.00%00 / 8
51.248.0.0/16Hosting100.00%065,536100.00%11 / 8
51.249.0.0/16Hosting100.00%065,536100.00%11 / 8
51.250.0.0/16VPN87.04%48632,76850.00%215 / 8
51.251.0.0/16—000.00%00 / 8
51.252.0.0/16Residential Proxy99.55%14,326021.86%872 / 8
51.253.0.0/16Residential Proxy99.51%25,964039.62%943 / 8
51.254.0.0/16VPN89.82%83565,536100.00%246 / 8
51.255.0.0/16VPN87.87%44565,536100.00%315 / 8
00 · No key

Start without signing up.

Paste it into a terminal — no account needed. 1k daily allowance per user, answering ip and is_vpn.

curl "https://api.vpndetection.io/45.83.91.1"
{
  "ip": "45.83.91.1",
  "is_vpn": true
}
01 · Free key

Signup for 50k req/month.

No card, no sales call — the key is issued on signup.
Every request flags VPN IPs.
Upgrade only when you outgrow the allowance.
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