Network · AS21891

AS21891 Buggs Island Telephone Cooperative

AS21891 (Buggs Island Telephone Cooperative) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21891

OwnerBuggs Island Telephone Cooperative
KindInternet service provider
Servers, not peopleno
IPv4 addresses3,328
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

137.118.240.0/21
137.118.236.0/22
137.118.128.0/24

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

Check an IP address →

Detect it in code

Spot AS21891 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 AS21891

Is AS21891 a datacenter or VPN network?

AS21891 (Buggs Island Telephone Cooperative) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21891?

AS21891 is registered to Buggs Island Telephone Cooperative. It announces about 3,328 IPv4 addresses.

How do I detect traffic from AS21891?

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.