Network · AS27

AS27 University of Maryland

AS27 (University of Maryland) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS27

OwnerUniversity of Maryland
KindInternet service provider
Servers, not peopleno
IPv4 addresses133,632
IPv4 ranges4
IPv6 ranges5

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

129.2.0.0/16
128.8.0.0/16
192.54.96.0/21
192.54.94.0/23

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

Check an IP address →

Detect it in code

Spot AS27 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 AS27

Is AS27 a datacenter or VPN network?

AS27 (University of Maryland) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS27?

AS27 is registered to University of Maryland. It announces about 133,632 IPv4 addresses.

How do I detect traffic from AS27?

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.