Regex for IBAN mask

Question

I am trying to extract this text \"NL dd ABNA ffffdffffdffffd\" from string:

IBAN NL 91ABNA0417463300
IBAN NL91ABNA0417164300
Iban: NL 69 ABNA 402032566

Answer 1

You can use the following regex:

(?i)(?:(?<=IBAN(?:[:\s]\s|\s[:\s]))NL\s?\d{2}\s?[A-Z]{4}[0 ]\s?\d{9,10})|(?:(?<=IBAN[:\s])NL\s?\d{2}\s?[A-Z]{4}[0 ]\s?\d{9,10})

demo:

https://regex101.com/r/zGDXa2/11

If you work in python you can remove the (?:i) and replace it by a flag re.I or re.IGNORECASE

Tested on:

Uw BTW nummer NL80
 IBAN NL 11abna0317164300asdfasf234
iBAN NL21ABNA0417134300 22
Iban: NL 29 ABNA 401422366f sdf
IBAN :NL 39 ABNA 0822416395s
IBAN:NL 39 ABNA 0822416395s

Extracts:

NL 11abna0317164300
NL21ABNA0417134300
NL 29 ABNA 401422366
NL 39 ABNA 0822416395
NL 39 ABNA 0822416395