Network · AS17421

AS17421 Mobile Business Group

AS17421 (Mobile Business Group) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17421

OwnerMobile Business Group
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,655,808
IPv4 ranges61
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

42.72.0.0/13
223.136.0.0/14
111.80.0.0/14
42.70.0.0/15
223.140.0.0/15
114.136.0.0/15
223.143.0.0/17
116.59.128.0/17
111.71.0.0/17
223.143.128.0/18
116.59.64.0/18
111.71.128.0/18

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

Check an IP address →

Detect it in code

Spot AS17421 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 AS17421

Is AS17421 a datacenter or VPN network?

AS17421 (Mobile Business Group) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17421?

AS17421 is registered to Mobile Business Group. It announces about 1,655,808 IPv4 addresses.

How do I detect traffic from AS17421?

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.