If you're going to be doing a lot of Geotargeting or IP Address Lookups, please take a feed instead which will preserve both our bandwidth and your bandwidth.

Alternatively, you can support us and Download a High-Accuracy Version.

Your IP Address: 18.189.194.44

Cambridge, MA, UNITED STATES
IP found in 0.0687 seconds

Is this wrong? Make a correction
or Download a High-Accuracy Version

Are you a host? Netblock upload

Simple GET

That said, there is an easy HTTP oriented API to locate IP addresses and Geocode them. If you don't supply the "?ip=aa.bb.cc.dd" bit, then the ip address lookup of the calling machine will be located instead (here, the aa,bb,cc,dd are decimal digits). If you add &position=true to the end of the URL then latitude and longitude will be returned also. Both HTML and XML formats are supplied for your convenience.

https://api.hostip.info/country.php
  US

https://api.hostip.info/get_html.php?ip=12.215.42.19
  Country: UNITED STATES (US)
  City: Sugar Grove, IL
	IP: 12.215.42.19

https://api.hostip.info/get_html.php?ip=12.215.42.19&position=true
  Country: UNITED STATES (US)
  City: Sugar Grove, IL
  Latitude: 41.7696
  Longitude: -88.4588
	IP: 12.215.42.19

https://api.hostip.info/get_json.php
  {"country_name":"UNITED STATES","country_code":"US","city":"Sugar Grove, IL","ip":"12.215.42.19"}

https://api.hostip.info/?ip=12.215.42.19
  [use the URL above for an example - XML too long to paste below]
		

Country Flag

Paste the following code into your HTML to get a country flag of the ip address. The database is significantly more accurate (it ought to be 100%) for countries than for cities. It would be nice if y'all would make the flag a link to the www.hostip.info home page (https://www.hostip.info/) so they can come by if they're interested - it'll only benefit you in the long run. After all, the results get more accurate as more visitors submit their IP addresses!

Flag of visitor's location:

<A HREF="https://www.hostip.info">
 <IMG SRC="https://api.hostip.info/flag.php" BORDER="0" ALT="IP Address Lookup">
</A>
		

Flag of any IP address:

<A HREF="https://www.hostip.info">
 <IMG SRC="https://api.hostip.info/flag.php?ip=12.215.42.19" ALT="IP Address Lookup">
</A>
		

*NIX Shell Script

You can use the following shell script to call in your favorite *NIX environment.

 #!/bin/tcsh -f
lynx -dump "https://api.hostip.info/get_html.php?ip=$1"
		

Testing your API calls

If you're looking to test your API calls through various, worldwide IP addresses you can try a proxy service like wonderproxy.com. Simply configure your browser to use the proxy and your IP address will appear as the proxy's instead of your own.

Commercial Geodatabase

MaxMind - If you're looking for a commercial option, this database maintains a great level of accuracy.