Furthermore routing information as specified by ISO 9362 does not contain check digits, so simple errors of transcription were not detectable and it was not possible for a sending bank to validate the routing information prior to submitting the payment. One of the design aims of the IBAN was to enable as much validation as possible to be done at the point of data entry. The sort code, which is a six-digit number, is usually formatted as three pairs of numbers, for example 12-34-56. Money being transferred across international borders, the international network is used. It identifies both the bank and the branch where the account is held. Although there is a strong correlation between BIC Codes and sort codes, sort codes are not explicitly encoded into BIC codes (although they are encoded into IBANs).

Bank NameSort CodeCityAddress & Info
ILKESTON PERMANENT BUILDING SOCIETY 405398 Equivalent Codes: 40-53-98 40 53 98 Ilkeston ILKESTON 24-26 South St, Derbys., DE7 5HQ, Phone: (1159) 325350, Ilkeston England