WordPress GeoIP Country Redirect plugin allows you to automatically redirect your visitors based on their country and a set of rules which you can define into wordpress administration panel.

Determine the Internet Service Provider, organization name, and autonomous system organization and number associated with an IP address. The organization name is available for about 40% of corporate, government, and educational networks. In situations where we are not able to identify a specific business entity, we return the ISP name instead of the name of the business.