Network · AS36426

AS36426 IsoTropic Networks, Inc.

AS36426 (IsoTropic Networks, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS36426

OwnerIsoTropic Networks, Inc.
KindInternet service provider
Servers, not peopleno
IPv4 addresses18,688
IPv4 ranges10
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

100.42.0.0/20
99.185.144.0/21
76.239.144.0/21
75.7.64.0/21
70.232.240.0/21
192.234.80.0/21
162.220.88.0/21
192.200.12.0/22
162.255.244.0/22
64.148.140.0/24

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

Check an IP address →

Detect it in code

Spot AS36426 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 AS36426

Is AS36426 a datacenter or VPN network?

AS36426 (IsoTropic Networks, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS36426?

AS36426 is registered to IsoTropic Networks, Inc.. It announces about 18,688 IPv4 addresses.

How do I detect traffic from AS36426?

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.