Bulk IP Lookup
Look up to 25 IP addresses at once and export the results as CSV.
How to use the bulk lookup
- Paste up to 25 IP addresses. One per line is easiest, but any text works: the tool picks out every valid IPv4 and IPv6 address from server logs, emails or spreadsheets.
- Press Look up all.
- Download the results as a CSV file or copy them, ready for Excel, Google Sheets or your own scripts.
Duplicates are removed automatically. Private and reserved addresses are labeled instead of looked up.
What each column means
| Column | Meaning |
|---|---|
| Country, City | The estimated location of the address |
| ASN | The network's Autonomous System Number |
| Network | The organization that runs the network |
| Type | Normal, Hosting, VPN / proxy, Tor exit node or Private |
Click any address to open its full IP lookup with reverse DNS and a map.
Common uses
- Reviewing server logs: find out where failed logins or unusual traffic came from.
- Fraud checks: spot orders or sign-ups coming from VPNs and data centers.
- Email investigations: look up every IP in a message's delivery path at once.
- Firewall planning: group attacker addresses by network before blocking ranges.
Frequently asked questions
Why is the limit 25 addresses?
Each address needs a lookup from our data provider. The limit keeps the tool free and fast for everyone.
Is my list stored?
No. The addresses are looked up and the results returned to your browser. Nothing is saved.
Why is the city empty for some addresses?
Data-center and mobile ranges often have only a country-level location.
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