Network · AS203156

AS203156 Relayify LLC

AS203156 (Relayify LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS203156

OwnerRelayify LLC
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,280
IPv4 ranges5
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

188.137.159.0/24
151.247.230.0/24
151.247.224.0/24
151.243.149.0/24
103.86.36.0/24

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

Check an IP address →

Detect it in code

Spot AS203156 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 AS203156

Is AS203156 a datacenter or VPN network?

AS203156 (Relayify LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS203156?

AS203156 is registered to Relayify LLC. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS203156?

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.