Network · AS37705

AS37705 TOPNET

AS37705 (TOPNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS37705

OwnerTOPNET
KindInternet service provider
Servers, not peopleno
IPv4 addresses843,008
IPv4 ranges25
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

102.156.0.0/14
197.0.0.0/15
41.62.0.0/16
41.226.0.0/16
197.240.0.0/16
197.238.0.0/16
197.2.0.0/16
41.230.0.0/17
197.244.0.0/17
41.230.128.0/18
197.3.64.0/18
197.3.192.0/18

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

Check an IP address →

Detect it in code

Spot AS37705 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 AS37705

Is AS37705 a datacenter or VPN network?

AS37705 (TOPNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS37705?

AS37705 is registered to TOPNET. It announces about 843,008 IPv4 addresses.

How do I detect traffic from AS37705?

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.