Generic top-level domains (gTLDs) don't target specific countries. If your site has a generic top-level domain, such as .com, .org, or any of the domains listed below, and targets users in a particular geographic location, you can provide us with information that will help us determine how your site appears in our search results. More information about geotargeting URLs.
Google treats the following as gTLDs that can be geotargeted in Webmaster Tools.
Generic Top Level Domains (gTLDs)
.aero .biz .cat .com .coop .edu .gov .info .int .jobs .mil .mobi .museum .name .net .org .pro .tel .travel
Regional top-level domains (rTLDs)
Although these domains are associated with a geographical region, they are generally treated as generic top-level domains (much like .com or .org).
Generic Country Code Top Level Domains (gccTLDs)
Google treats some ccTLDs (such as .tv, .me, etc.) as gTLDs, as we've found that users and webmasters frequently see these more generic than country-targeted. Here is a list of those ccTLDs (note that this list may change over time).
.ad .as .bz .cc .cd .co .dj .fm .io .la .me .ms .nu .sc .sr .su .tv .tk .ws