Network · AS6704

AS6704 Citylan LLC

AS6704 (Citylan LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS6704

  • OwnerCitylan LLC
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,024
  • IPv4 ranges1
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 185.123.40.0/22

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

Check an IP address →

Detect it in code

Spot AS6704 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 AS6704

Is AS6704 a datacenter or VPN network?

AS6704 (Citylan LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS6704?

AS6704 is registered to Citylan LLC. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS6704?

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.