Regular Expressions 101

Explanation
Pro

NLthe literal text NL (case sensitive)

.*any Unicode character (except for line terminators), repeated any number of times

\d{9}a Unicode decimal digit, repeated exactly 9 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

NL.*\d{9}$

New

IBAN NL 91ABNA0417164300
IBAN NL91ABNA0417164300
Iban: NL 69 ABNA 401022366

IBAN NL 91ABNA0417164300
IBAN NL91ABNA0417164300
Iban: NL 69 ABNA 401022366