Network · AS399313

AS399313 TUFTS ASSOCIATED HEALTH PLANS, INC.

AS399313 (TUFTS ASSOCIATED HEALTH PLANS, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS399313

OwnerTUFTS ASSOCIATED HEALTH PLANS, INC.
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,120
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

155.49.96.0/20
155.49.112.0/23
8.36.138.0/24
63.118.17.0/24

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

Check an IP address →

Detect it in code

Spot AS399313 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 AS399313

Is AS399313 a datacenter or VPN network?

AS399313 (TUFTS ASSOCIATED HEALTH PLANS, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS399313?

AS399313 is registered to TUFTS ASSOCIATED HEALTH PLANS, INC.. It announces about 5,120 IPv4 addresses.

How do I detect traffic from AS399313?

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.