AS17621
- OwnerChina Unicom Shanghai network
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses837,632
- IPv4 ranges345
- IPv6 ranges66
Nothing suspicious found.
Network · AS17621
AS17621 (China Unicom Shanghai network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS17621
Nothing suspicious found.
139.226.0.0/1658.246.0.0/17140.206.0.0/17139.227.0.0/1758.247.128.0/1858.247.0.0/1827.115.0.0/18223.167.0.0/18223.166.0.0/18220.248.64.0/18139.227.128.0/1858.247.64.0/19Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.
Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.
curl https://veqen-app.com/v1/ip/check \
-H "Authorization: Bearer $VEQEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"ip": "203.0.113.7"}'import os, requests
r = requests.post(
"https://veqen-app.com/v1/ip/check",
headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
json={"ip": "203.0.113.7"},
timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])const res = await fetch("https://veqen-app.com/v1/ip/check", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);AS17621 (China Unicom Shanghai network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS17621 is registered to China Unicom Shanghai network. It announces about 837,632 IPv4 addresses.
Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.