The content blade requires the following to match for a UK IBAN number in a close proximity.

  1. European IBAN number format

  2. UK IBAN number pattern

IBAN Rule: "GB" country code followed by 20 characters.

GB, ISO country code

2 Digits (numeric characters 0 to 9 only) , Check Digits (IBAN)

4 Upper case letters (A-Z only), Bank Identifier Digits

6 Digits (numeric characters 0 to 9 only), Bank branch code

8 Digits (numeric characters 0 to 9 only), Account number

Pattern:

GBDDLLLLDDDDDDDDDDDDDD

GB DD LLLL DDDD DDDD DDDD DD

GB DD LLLL DDDDDD DDDDDDDD