title: hreflang tags for Europe
body: <p>I'd always understood that, because there is no <code>en-EU</code> IETF tag, to target Europe I'd have to either use <code>en</code> or list out an <code>hreflang</code> for each country within Europe.</p>
  
  <p>Looking at the source of <a href="https://www.thinkwithgoogle.com/intl/en-gb/" rel="noreferrer">Think With Google</a>, I noticed the following:</p>
  
  <pre><code>&lt;link rel="alternate" href="//thinkwithgoogle.com/intl/es-419/" hreflang="es-419" /&gt;
  </code></pre>
  
  <p>Which appears to use a UN M.49 code to indicate <em>Spanish for the Latin America and Caribbean region</em>.</p>
  
  <p>The <a href="https://en.wikipedia.org/wiki/UN_M.49" rel="noreferrer">UN M.49 Wikipedia page</a> also lists a code for Europe - <code>150</code>.</p>
  
  <p>Does it follow that I could have the following <code>hreflang</code> tag to indicate English for the European market?</p>
  
  <pre><code>&lt;link rel="alternate" href="//example.com/intl/en-150/" hreflang="en-150" /&gt;
  </code></pre>