Network · AS1678

AS1678 The Dow Chemical Company

AS1678 (The Dow Chemical Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1678

  • OwnerThe Dow Chemical Company
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses7,168
  • IPv4 ranges18
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 151.163.52.0/22
  • 151.163.200.0/22
  • 216.99.82.0/23
  • 216.99.64.0/23
  • 165.216.246.0/23
  • 151.163.2.0/23
  • 216.99.87.0/24
  • 216.99.85.0/24
  • 204.136.242.0/24
  • 204.136.241.0/24
  • 204.136.184.0/24
  • 204.136.182.0/24

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

Check an IP address →

Detect it in code

Spot AS1678 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 AS1678

Is AS1678 a datacenter or VPN network?

AS1678 (The Dow Chemical Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1678?

AS1678 is registered to The Dow Chemical Company. It announces about 7,168 IPv4 addresses.

How do I detect traffic from AS1678?

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.