Network · AS17276

AS17276 SEI Investments

AS17276 (SEI Investments) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17276

OwnerSEI Investments
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

206.220.236.0/22
170.76.224.0/23
12.20.48.0/23

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS17276 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 AS17276

Is AS17276 a datacenter or VPN network?

AS17276 (SEI Investments) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17276?

AS17276 is registered to SEI Investments. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS17276?

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.