Skeebus

Skeebus is a menu-bar app that displays your current public IP address. It uses GeoIP services to provide the country, region, city, postal code, latitude/longitude, and ISP information. Skeebus also displays the country flag to the right of the IP address, and looks great for both traditional and dark menu-bar modes. You can even click the lat/long data to plot the location on a map. If the app is unable to contact the GeoIP provider, it will fall back to another provider and determine your IP address without the GeoIP information. Skeebus does not periodically contact either provider to update your address; rather it automatically updates any time an interface state changes (a cable is plugged in/unplugged, wireless is connected/disconnected, a VPN is connected/disconnected, etc.). You can also manually refresh the data at any point.