Network · AS16857

AS16857 Central Texas Telecommunications

AS16857 (Central Texas Telecommunications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS16857

OwnerCentral Texas Telecommunications
KindInternet service provider
Servers, not peopleno
IPv4 addresses13,056
IPv4 ranges16
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

209.55.96.0/20
209.55.72.0/21
74.84.20.0/22
69.7.88.0/22
74.84.8.0/23
74.84.28.0/23
69.7.80.0/23
66.208.96.0/23
66.208.110.0/23
66.208.102.0/23
209.55.64.0/23
74.84.10.0/24

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

Check an IP address →

Detect it in code

Spot AS16857 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 AS16857

Is AS16857 a datacenter or VPN network?

AS16857 (Central Texas Telecommunications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS16857?

AS16857 is registered to Central Texas Telecommunications. It announces about 13,056 IPv4 addresses.

How do I detect traffic from AS16857?

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.