Network · AS9583

AS9583 Sify Limited

AS9583 (Sify Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9583

  • OwnerSify Limited
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses784,127
  • IPv4 ranges661
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 223.30.0.0/16
  • 118.95.0.0/17
  • 118.94.128.0/17
  • 223.31.0.0/18
  • 119.226.128.0/18
  • 119.226.0.0/18
  • 118.95.192.0/18
  • 118.94.0.0/18
  • 1.6.64.0/18
  • 223.31.64.0/19
  • 223.31.224.0/19
  • 210.18.32.0/19

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

Check an IP address →

Detect it in code

Spot AS9583 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 AS9583

Is AS9583 a datacenter or VPN network?

AS9583 (Sify Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9583?

AS9583 is registered to Sify Limited. It announces about 784,127 IPv4 addresses.

How do I detect traffic from AS9583?

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.