Bulk IP Lookup
Paste a list of IPv4 or IPv6 addresses (one per line, up to 50) to run batched lookups with automatic concurrency management. Download results directly as a CSV spreadsheet.
Lookup Results
| IP Address | Country | City / Region | ISP / Org | ASN | rDNS | Status |
|---|
Why Use Bulk IP Lookups?
System administrators, incident responders, and fraud analysts frequently deal with lists of dozens or hundreds of IP addresses extracted from web server access logs, firewall drop alerts, or authentication failure logs.
Querying each address manually through a single-form interface is tedious. The bulk lookup tool lets you paste up to 50 IP addresses at once, executes lookups under controlled concurrency (preventing rate limit blocks), and outputs clean tabular data that you can instantly export into security triage spreadsheets.
Concurrency & Rate Limit Considerations
To prevent overwhelming public DNS and regional RIR data feeds, this tool throttles queries using a client-side concurrency pipeline with a small inter-request delay. If you require programmatic access to millions of daily lookups, you should integrate an offline MaxMind GeoIP2 database or commercial API feed.