Network check
ASN
AS31757
- OwnerValleyCrest Companies
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS31757
AS31757 ValleyCrest Companies
AS31757 (ValleyCrest Companies) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS31757 traffic at signup.
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);Questions
About AS31757
Is AS31757 a datacenter or VPN network?
AS31757 (ValleyCrest Companies) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS31757?
AS31757 is registered to ValleyCrest Companies. It announces about 256 IPv4 addresses.
How do I detect traffic from AS31757?
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.