Network · AS5738

AS5738 FirstLight Networks, LLC

AS5738 (FirstLight Networks, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS5738

OwnerFirstLight Networks, LLC
KindInternet service provider
Servers, not peopleno
IPv4 addresses59,648
IPv4 ranges55
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

209.198.96.0/19
216.114.160.0/20
216.114.128.0/20
207.136.224.0/20
207.136.208.0/20
72.15.8.0/21
72.15.24.0/21
64.17.120.0/21
64.17.104.0/21
209.198.72.0/21
72.15.4.0/22
72.15.16.0/22

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

Check an IP address →

Detect it in code

Spot AS5738 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 AS5738

Is AS5738 a datacenter or VPN network?

AS5738 (FirstLight Networks, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS5738?

AS5738 is registered to FirstLight Networks, LLC. It announces about 59,648 IPv4 addresses.

How do I detect traffic from AS5738?

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.