Why the difference matters for fraud and abuse
Most automated abuse runs from data centers because servers are cheap, fast, and disposable. A signup, checkout, or login from a hosting ASN is far more likely to be a bot, a scraper, or someone hiding behind a VPN than a customer on their couch. Weighting datacenter traffic as higher risk catches a large share of low-effort abuse for almost no cost. This is the informational backbone of bot detection and ad fraud defenses.
Be honest about the edges, though. Datacenter does not always mean bad: corporate VPNs, CI pipelines, and monitoring tools all originate from data centers. Residential does not always mean safe: residential proxies and malware-infected home devices route abusive traffic through trusted-looking IPs. The right move is to score, not to hard-block on this signal alone.
How to check any IP's type in real time
The datacenter-vs-residential decision is one field. Abstract's IP Intelligence API returns the ASN, its type, and the is_hosting, is_vpn, is_proxy, and is_tor flags for any IP in a single request, so you can make the call at signup, checkout, or login without maintaining your own IP lists. For a one-off manual check, the free ASN Lookup tool shows the operator and type for any address.
Frequently Asked Questions
What is a datacenter IP address?
A datacenter IP belongs to a hosting or cloud provider's network and is attached to a server rather than a person. Because anyone can rent one, they are common sources of bots, scrapers, and VPN traffic.
How can you tell if an IP is datacenter or residential?
Look up the IP's ASN and check its type. A hosting-type ASN means a datacenter IP; an ISP-type ASN means a residential or business access connection. An is_hosting flag captures the same distinction.
Are datacenter IPs bad?
Not inherently. They carry more risk because most automated abuse runs from them, but legitimate traffic from corporate VPNs, CI systems, and monitoring tools also comes from data centers. Treat it as a risk signal, not an automatic block.
What is a residential proxy?
A residential proxy routes traffic through real home internet connections so it appears to come from a residential IP. It exists specifically to borrow the higher trust residential addresses carry, which is why the datacenter-vs-residential signal must be combined with others.
Which ASNs are datacenter ASNs?
Hosting providers such as OVH (AS16276), Hetzner (AS24940), DigitalOcean, AWS (AS16509), and Google Cloud operate datacenter ASNs. Consumer ISPs such as Comcast (AS7922) and Verizon operate residential ones.
