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12,534 flagged8 datasets
/16 subnet

5.21.0.0/16

Browse all /24 subnets inside this subnet, down to the individual addresses. Click on any /24 CIDR entry to jump to its address list.

5.21.0.0/24—000.00%00 / 8
5.21.1.0/24—000.00%00 / 8
5.21.2.0/24—000.00%00 / 8
5.21.3.0/24—000.00%00 / 8
5.21.4.0/24Residential Proxy100.00%100.39%11 / 8
5.21.5.0/24VPN77.78%9256100.00%33 / 8
5.21.6.0/24Residential Proxy88.89%27256100.00%153 / 8
5.21.7.0/24Residential Proxy84.62%13256100.00%123 / 8
5.21.8.0/24Residential Proxy100.00%200.78%21 / 8
5.21.9.0/24VPN100.00%7256100.00%12 / 8
5.21.10.0/24VPN75.00%8256100.00%43 / 8
5.21.11.0/24—000.00%00 / 8
5.21.12.0/24—000.00%00 / 8
5.21.13.0/24—000.00%00 / 8
5.21.14.0/24—000.00%00 / 8
5.21.15.0/24—000.00%00 / 8
5.21.16.0/24Residential Proxy100.00%200.78%21 / 8
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5.21.19.0/24—000.00%00 / 8
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5.21.44.0/24Residential Proxy100.00%32012.50%91 / 8
5.21.45.0/24Residential Proxy98.68%76029.69%162 / 8
5.21.46.0/24Residential Proxy96.39%83032.42%162 / 8
5.21.47.0/24Residential Proxy98.48%66025.78%112 / 8
5.21.48.0/24Residential Proxy100.00%132051.56%302 / 8
5.21.49.0/24Residential Proxy100.00%141055.08%281 / 8
5.21.50.0/24Residential Proxy100.00%130050.78%282 / 8
5.21.51.0/24Residential Proxy100.00%115044.92%282 / 8
5.21.52.0/24Residential Proxy100.00%125048.83%281 / 8
5.21.53.0/24Residential Proxy100.00%115044.92%261 / 8
5.21.54.0/24Residential Proxy100.00%125048.83%281 / 8
5.21.55.0/24Residential Proxy100.00%132051.56%281 / 8
5.21.56.0/24Residential Proxy99.19%124256100.00%253 / 8
5.21.57.0/24Residential Proxy99.18%122047.66%222 / 8
5.21.58.0/24Residential Proxy99.21%126049.22%252 / 8
5.21.59.0/24Residential Proxy100.00%135052.73%292 / 8
5.21.60.0/24Residential Proxy100.00%153059.77%303 / 8
5.21.61.0/24Residential Proxy100.00%150058.59%261 / 8
5.21.62.0/24Residential Proxy100.00%155060.55%231 / 8
5.21.63.0/24Residential Proxy100.00%179069.92%302 / 8
5.21.64.0/24Residential Proxy100.00%140054.69%293 / 8
5.21.65.0/24Residential Proxy100.00%156060.94%281 / 8
5.21.66.0/24Residential Proxy100.00%154060.16%312 / 8
5.21.67.0/24Residential Proxy100.00%164064.06%291 / 8
5.21.68.0/24Residential Proxy100.00%154060.16%241 / 8
5.21.69.0/24Residential Proxy100.00%162063.28%273 / 8
5.21.70.0/24Residential Proxy100.00%157061.33%261 / 8
5.21.71.0/24Residential Proxy100.00%160062.50%262 / 8
5.21.72.0/24—000.00%00 / 8
5.21.73.0/24Residential Proxy100.00%100.39%11 / 8
5.21.74.0/24Residential Proxy100.00%100.39%11 / 8
5.21.75.0/24—000.00%00 / 8
5.21.76.0/24Residential Proxy99.18%122256100.00%294 / 8
5.21.77.0/24Residential Proxy100.00%131051.17%322 / 8
5.21.78.0/24Residential Proxy100.00%135052.73%262 / 8
5.21.79.0/24Residential Proxy100.00%129050.39%292 / 8
5.21.80.0/24Residential Proxy100.00%135052.73%353 / 8
5.21.81.0/24Residential Proxy97.50%120256100.00%283 / 8
5.21.82.0/24Residential Proxy100.00%126049.22%261 / 8
5.21.83.0/24Residential Proxy100.00%110042.97%251 / 8
5.21.84.0/24Residential Proxy100.00%126049.22%281 / 8
5.21.85.0/24Residential Proxy100.00%129050.39%271 / 8
5.21.86.0/24Residential Proxy100.00%123048.05%291 / 8
5.21.87.0/24Residential Proxy99.21%126049.22%232 / 8
5.21.88.0/24Residential Proxy100.00%134052.34%312 / 8
5.21.89.0/24Residential Proxy99.19%123256100.00%313 / 8
5.21.90.0/24Residential Proxy100.00%117045.70%261 / 8
5.21.91.0/24Residential Proxy100.00%128050.00%281 / 8
5.21.92.0/24Residential Proxy100.00%100.39%11 / 8
5.21.93.0/24—000.00%00 / 8
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5.21.95.0/24Residential Proxy100.00%100.39%11 / 8
5.21.96.0/24—000.00%00 / 8
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5.21.98.0/24Residential Proxy100.00%100.39%11 / 8
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5.21.104.0/24Residential Proxy100.00%74028.91%182 / 8
5.21.105.0/24Residential Proxy96.83%63024.61%132 / 8
5.21.106.0/24Residential Proxy96.55%58022.66%122 / 8
5.21.107.0/24Residential Proxy98.81%84032.81%132 / 8
5.21.108.0/24Residential Proxy98.46%65025.39%142 / 8
5.21.109.0/24Residential Proxy96.72%61023.83%162 / 8
5.21.110.0/24Residential Proxy100.00%57022.27%112 / 8
5.21.111.0/24Residential Proxy98.63%73028.52%192 / 8
5.21.112.0/24Residential Proxy97.14%70027.34%142 / 8
5.21.113.0/24Residential Proxy98.75%80031.25%162 / 8
5.21.114.0/24Residential Proxy97.01%67026.17%182 / 8
5.21.115.0/24Residential Proxy96.97%66025.78%142 / 8
5.21.116.0/24Residential Proxy96.92%65025.39%152 / 8
5.21.117.0/24Residential Proxy98.85%87033.98%152 / 8
5.21.118.0/24Residential Proxy100.00%59023.05%172 / 8
5.21.119.0/24Residential Proxy98.89%90035.16%172 / 8
5.21.120.0/24Residential Proxy100.00%2007.81%131 / 8
5.21.121.0/24—000.00%00 / 8
5.21.122.0/24—000.00%00 / 8
5.21.123.0/24—000.00%00 / 8
5.21.124.0/24VPN75.00%12256100.00%53 / 8
5.21.125.0/24Residential Proxy60.00%10256100.00%63 / 8
5.21.126.0/24VPN78.79%33256100.00%83 / 8
5.21.127.0/24VPN66.67%15256100.00%53 / 8
5.21.128.0/24Residential Proxy97.78%45017.58%152 / 8
5.21.129.0/24Residential Proxy98.44%64025.00%182 / 8
5.21.130.0/24Residential Proxy100.00%51019.92%151 / 8
5.21.131.0/24Residential Proxy96.88%64025.00%192 / 8
5.21.132.0/24Residential Proxy100.00%2560100.00%172 / 8
5.21.133.0/24Residential Proxy100.00%240093.75%172 / 8
5.21.134.0/24Residential Proxy100.00%240093.75%152 / 8
5.21.135.0/24Residential Proxy100.00%152059.38%142 / 8
5.21.136.0/24—000.00%00 / 8
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5.21.140.0/24Residential Proxy100.00%254099.22%182 / 8
5.21.141.0/24Residential Proxy100.00%220085.94%202 / 8
5.21.142.0/24Residential Proxy100.00%191074.61%182 / 8
5.21.143.0/24Residential Proxy99.02%102039.84%212 / 8
5.21.144.0/24—000.00%00 / 8
5.21.145.0/24Residential Proxy97.30%37014.45%42 / 8
5.21.146.0/24Residential Proxy100.00%42016.41%21 / 8
5.21.147.0/24Residential Proxy95.65%2308.98%32 / 8
5.21.148.0/24—000.00%00 / 8
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5.21.236.0/24Residential Proxy100.00%153059.77%312 / 8
5.21.237.0/24Residential Proxy100.00%153059.77%261 / 8
5.21.238.0/24Residential Proxy100.00%160062.50%261 / 8
5.21.239.0/24Residential Proxy99.37%159062.11%313 / 8
5.21.240.0/24—000.00%00 / 8
5.21.241.0/24VPN80.00%10256100.00%33 / 8
5.21.242.0/24Residential Proxy100.00%100.39%11 / 8
5.21.243.0/24Residential Proxy83.33%602.34%52 / 8
5.21.244.0/24—000.00%00 / 8
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5.21.255.0/24—000.00%00 / 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.