Network · AS6400

AS6400 Compañía Dominicana de Teléfonos S. A.

AS6400 (Compañía Dominicana de Teléfonos S. A.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS6400

OwnerCompañía Dominicana de Teléfonos S. A.
KindInternet service provider
Servers, not peopleno
IPv4 addresses844,032
IPv4 ranges20
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

190.166.0.0/15
186.6.0.0/15
179.52.0.0/15
200.88.0.0/16
152.0.0.0/16
148.255.0.0/16
148.101.0.0/16
148.0.0.0/16
201.229.128.0/17
190.80.128.0/17
66.98.0.0/18
64.32.64.0/18

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

Check an IP address →

Detect it in code

Spot AS6400 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 AS6400

Is AS6400 a datacenter or VPN network?

AS6400 (Compañía Dominicana de Teléfonos S. A.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS6400?

AS6400 is registered to Compañía Dominicana de Teléfonos S. A.. It announces about 844,032 IPv4 addresses.

How do I detect traffic from AS6400?

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.