title: Where can I find a list of language + region codes?
body: <p>I have googled (well, DuckDuckGo'ed, actually) till I'm blue in the face, but cannot find a list of language codes of the type <code>en-GB</code> or <code>fr-CA</code> anywhere.</p>
  
  <p>There are excellent resources about the components, in particular the <a href="http://www.w3.org/International/articles/language-tags/#region">W3C I18n page</a>, but I was hoping for a simple alphabetical listing, fairly canonical if possible (something like <a href="http://www.iana.org/assignments/language-subtag-registry">this one</a>). Cannot find.</p>
  
  <p>Can anyone point me in the right direction? Many thanks!</p>