Datacenter IP Ranges & Detection Directory 2026
The major cloud and hosting ASNs behind datacenter traffic — AWS, GCP, Azure, Hetzner, OVH, DigitalOcean, Vultr and more. Check if an IP is a datacenter IP, or detect hosting traffic in real time.
What Is a Datacenter IP — and Why Is It a Fraud Signal?
A datacenter IP belongs to a cloud or hosting provider — AWS, Google Cloud, Azure, Hetzner, OVH and the like — rather than to a home broadband or mobile connection. Real human users almost never browse from a datacenter. So when a "consumer" action (a signup, a login, a checkout) arrives from a hosting ASN, it is a strong tell that a server, script, or bot is behind it — not a person on their phone or laptop.
Datacenter IPs are the easiest anonymization type to catch. Unlike residential and mobile proxies — which rotate across millions of real consumer IPs with no stable ASN to block — datacenter traffic sits on a well-known, finite set of hosting ASNs and their announced ranges. That makes it reliably range-flaggable, which is why datacenter classification is the backbone of most IP-based fraud scoring.
Datacenter vs. Residential vs. Mobile IPs
| IP Type | Where It Comes From | Detectability |
|---|---|---|
| 🏢 Datacenter | Cloud / hosting ASNs (AWS, GCP, Hetzner…) | Easiest — stable ASN + ranges |
| 🏠 Residential | Real consumer ISP connections | Hardest — behavioral only |
| 📱 Mobile | 4G/5G carrier gateways (CGNAT) | Hard — high trust, CGNAT |
For the full breakdown, see residential vs. datacenter vs. mobile proxies. Datacenter proxies are covered in depth on the proxy IP ranges directory.
Why Flag Datacenter Traffic?
⚠️ Risk Indicators
- • Bots and headless-browser automation at scale
- • Web scraping and price/inventory harvesting
- • Credential stuffing and account takeover
- • Fake signups, trial abuse, and multi-accounting
- • Datacenter proxies and DIY VPNs on cheap VPS
✅ Legitimate Uses
- • Server-to-server API integrations and webhooks
- • Uptime monitors and health checks
- • Search engine and preview crawlers
- • Corporate cloud egress and CI pipelines
- • Legitimate SEO / brand-monitoring tools
Best practice: datacenter is a high-confidence signal, but not every hit is malicious — real integrations and crawlers run from the cloud too. Gate human-facing flows (signup, login, checkout) hard, but allowlist known good bots and API clients. See blocking datacenter IPs without hurting real users.
Major Datacenter & Hosting ASNs
15 ASNsSample IPs are representative of each network's announced ranges (individual server IPs rotate). Click an ASN to explore the full network, or an IP for live threat intelligence.
| Hosting ASN | Category | Sample IP | Notes |
|---|---|---|---|
| AS16509 · Amazon.com (AWS) | Hyperscale cloud | 3.0.0.1 | Largest public cloud; heavy source of cloud-hosted scraping and abuse |
| AS14618 · Amazon.com Inc (US-East) | Hyperscale cloud | 52.0.0.1 | Primary AWS US-East ASN — highest volume of cloud abuse traffic globally |
| AS15169 · Google LLC (GCP) | Hyperscale cloud | 34.170.211.100 | Google Cloud compute ranges used for bots, credential stuffing, scraping |
| AS8075 · Microsoft Azure | Hyperscale cloud | 20.0.0.1 | Azure compute; malicious infrastructure hosted at scale |
| AS45102 · Alibaba Cloud | Hyperscale cloud | 8.208.0.1 | Chinese hyperscaler with global PoPs; common scraping origin |
| AS31898 · Oracle Cloud Infrastructure | Hyperscale cloud | 129.146.0.1 | Enterprise cloud increasingly used for automated scanning and bots |
| AS14061 · DigitalOcean | Budget VPS | 64.225.0.1 | One-click droplets — easy provisioning makes it a favorite for abuse |
| AS20473 · Vultr Holdings | Budget VPS | 45.32.0.1 | Cheap global VPS with streamlined signup, often abused |
| AS63949 · Linode (Akamai) | Budget VPS | 45.33.0.1 | Popular VPS for both legitimate and malicious workloads |
| AS51167 · Contabo GmbH | Budget VPS | 62.171.128.1 | Very cheap VPS frequently spun up as datacenter proxies and bots |
| AS54290 · Hostwinds LLC | Budget VPS | 192.236.128.1 | Budget host abused for proxy, scraping, and scanning pools |
| AS24940 · Hetzner Online | European hosting | 5.9.0.1 | Large German host; cheap dedicated/cloud, high automation volume |
| AS16276 · OVH | European hosting | 51.68.0.1 | Large European host with diverse abuse patterns |
| AS12876 · Scaleway (Online S.A.S.) | European hosting | 51.15.0.1 | French cloud with affordable instances used for abuse infrastructure |
| AS30633 · Leaseweb USA Inc | European hosting | 23.81.0.1 | Global host used heavily for proxy, VPN, and bot hosting |
Datacenter ASNs by Category
Hyperscale clouds carry the highest volume; budget VPS hosts are the cheapest to abuse. Detecting these networks catches most datacenter traffic at once.
Hyperscale cloud
6 ASNsEuropean hosting
4 ASNsHow to Detect Datacenter IPs with IPASIS
IPASIS classifies datacenter, VPN, proxy, and Tor IPs in real-time (<20ms latency) by matching every request against live hosting-ASN intelligence and announced-range data:
- •ASN and announced-range matching for every major cloud and hosting network
- •Datacenter vs. residential vs. mobile classification on every IP
- •Reverse-DNS and WHOIS fingerprints of hosting infrastructure
- •Historical abuse data and threat-intelligence feeds per ASN
curl -X POST https://api.ipasis.com/v1/detect \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"ip": "3.0.0.1"
}'
# Response:
{
"ip": "3.0.0.1",
"datacenter": true,
"vpn": false,
"proxy": false,
"tor": false,
"trust_score": 74,
"asn": {
"number": 16509,
"name": "Amazon.com (AWS)",
"risk_level": "medium"
},
"threats": ["datacenter", "hosting"],
"recommendation": "step_up_verification"
}Flagging Datacenter Traffic (Code Examples)
Express.js Middleware
const ipasis = require('@ipasis/node');
app.use(async (req, res, next) => {
const result = await ipasis.detect(req.ip);
// Datacenter on a human-facing route: gate hard.
if (result.datacenter && req.path.startsWith('/signup')) {
return res.status(403).json({ error: 'datacenter_blocked' });
}
next();
});Next.js Middleware
import { NextResponse } from 'next/server';
import { detect } from '@ipasis/node';
export async function middleware(req) {
const ip = req.ip || req.headers.get('x-forwarded-for');
const result = await detect(ip);
if (result.datacenter) {
const res = NextResponse.next();
res.headers.set('x-datacenter', 'true');
return res;
}
}Related Resources
Is This IP a Datacenter IP? Find Out in Real Time
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