Network · AS25883

AS25883 Citigroup Inc.

AS25883 (Citigroup Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25883

  • OwnerCitigroup Inc.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses3,584
  • IPv4 ranges10
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 192.193.40.0/23
  • 192.193.178.0/23
  • 192.193.104.0/23
  • 192.193.102.0/23
  • 199.67.180.0/24
  • 192.193.8.0/24
  • 192.193.39.0/24
  • 192.193.222.0/24
  • 192.193.185.0/24
  • 192.193.171.0/24

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

Check an IP address →

Detect it in code

Spot AS25883 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 AS25883

Is AS25883 a datacenter or VPN network?

AS25883 (Citigroup Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25883?

AS25883 is registered to Citigroup Inc.. It announces about 3,584 IPv4 addresses.

How do I detect traffic from AS25883?

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.