Network check
ASN
AS21608
- OwnerBlue Cross Blue Shield of Illinois or
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS21608
AS21608 Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas
AS21608 (Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS21608 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 AS21608
Is AS21608 a datacenter or VPN network?
AS21608 (Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS21608?
AS21608 is registered to Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas. It announces about 256 IPv4 addresses.
How do I detect traffic from AS21608?
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.