title: Regex for IBAN mask
body: <p>I am trying to extract this text "NL dd ABNA ddddddddd" from string:</p>
  
  <pre><code>IBAN NL 91ABNA0417463300
  IBAN NL91ABNA0417164300
  Iban: NL 69 ABNA 402032566
  </code></pre>
  
  <p>And that string may have three or more variations.</p>
  
  <p>Yet I've only come to this:</p>
  
  <pre><code>NL\s?\d{2}\s?[A-Z]{4}0\s?\d{9}$
  </code></pre>
  
  <p>Which matches the first two examples, but not the third.</p>
  
  <p>See: <a href="https://regex101.com/r/zGDXa2/1" rel="nofollow noreferrer">https://regex101.com/r/zGDXa2/1</a>.</p>
  
  <p>How can I treat it?</p>