Network · AS45557

AS45557 Vietnam Technology and Telecommunication JSC

AS45557 (Vietnam Technology and Telecommunication JSC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45557

OwnerVietnam Technology and Telecommunicati
KindInternet service provider
Servers, not peopleno
IPv4 addresses7,168
IPv4 ranges7
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

180.148.0.0/21
45.118.136.0/22
103.17.88.0/22
103.153.220.0/22
103.129.80.0/22
103.170.248.0/23
103.153.218.0/23

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

Check an IP address →

Detect it in code

Spot AS45557 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 AS45557

Is AS45557 a datacenter or VPN network?

AS45557 (Vietnam Technology and Telecommunication JSC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45557?

AS45557 is registered to Vietnam Technology and Telecommunication JSC. It announces about 7,168 IPv4 addresses.

How do I detect traffic from AS45557?

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.