Network · AS3257

AS3257 GTT Communications Inc.

AS3257 (GTT Communications Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS3257

OwnerGTT Communications Inc.
KindInternet service provider
Servers, not peopleno
IPv4 addresses4,204,800
IPv4 ranges3,592
IPv6 ranges101

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

82.111.0.0/16
81.188.0.0/16
67.100.0.0/16
217.207.0.0/16
217.205.0.0/16
195.81.0.0/16
134.222.0.0/16
217.206.128.0/17
213.39.0.0/17
205.179.0.0/17
154.14.0.0/17
92.54.128.0/18

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

Check an IP address →

Detect it in code

Spot AS3257 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 AS3257

Is AS3257 a datacenter or VPN network?

AS3257 (GTT Communications Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS3257?

AS3257 is registered to GTT Communications Inc.. It announces about 4,204,800 IPv4 addresses.

How do I detect traffic from AS3257?

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.