Network · AS29899

AS29899 Geisinger System Services

AS29899 (Geisinger System Services) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS29899

  • OwnerGeisinger System Services
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses65,536
  • IPv4 ranges1
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 159.240.0.0/16

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS29899 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 AS29899

Is AS29899 a datacenter or VPN network?

AS29899 (Geisinger System Services) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS29899?

AS29899 is registered to Geisinger System Services. It announces about 65,536 IPv4 addresses.

How do I detect traffic from AS29899?

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.