Your IP Address

216.73.217.47
City Columbus
Region Ohio
Country United States (US)
Coordinates 39.9612, -82.9988
Continent North America
Network WHOIS 216.73.216.0/22
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Registry ARIN

API Usage

Use curl or any CLI HTTP client for machine-readable output:

$ curl ip.cow.org

Looking Up Another Address

Append any IPv4 or IPv6 address to the path. Every output format below works the same way.

$ curl ip.cow.org/142.254.87.24
$ curl ip.cow.org/2001:4860:4860::8888?j

Output Formats

Parameter Description
?j JSON output (pretty-printed)
?d JSON output (compact)
?x XML output
?s Shell-friendly key="value" format
?p Human-readable with label
(none) Plain IP address only

Examples

$ curl ip.cow.org # Just the IP
$ curl ip.cow.org?j # JSON with GeoIP
$ curl ip.cow.org?x # XML format
$ curl ip.cow.org?s # Shell variables
$ curl ip.cow.org/1.1.1.1 # Look up a specific address

Tools

IPv4/6 Subnet Calculator — Visual subnet splitting and CIDR calculations

IP geolocation by DB-IP  |  Network data by Team Cymru  |  About the author
vef65434 (2026-08-17_03:48:44)