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IBAN-BIC.com (Theano GmbH)

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New customer? Register below

Introduzca su nombre de usuario y contraseña para iniciar su sesión en el sitio web:

Welcome to the Premium Version of the IBAN Calculator!

If you're looking for the free-to-use, ad-supported version, visit http://www.ibancalculator.com.

New customers can register below. Returning customers can find log-in boxes above and to the right.

Register Here

You will receive a small portion of calculation points for a free trial.

  • Please enter a single word without special characters.


  • To make sure only real people register (and not automated spamming machines), please copy the text from the image.

  • We will send you an activation link and thus verify this address.

For corporate clients / banks:

  • SOAP or REST Web Service: Integrate the IBAN calculator into your own processes.
  • Mass Calculations: Calculate or validate thousands of IBANs in one step. Export your data into the XLS (Excel) or CSV format, upload the file, and wait a few minutes. There is also an sFTP interface available for batch processing.
  • Our IBAN validations go way beyond the checksum check. We also check the domestic bank codes and account numbers which are embedded in IBANs. To facilitate fraud prevention, we crawl the Web for IBANs and, if an IBAN you validate has been found on the Web, report this to you. Last, but not least, we provide a mechanism for checking not only if an IBAN is formally correct but also if it actually exists and belongs to a given account holder.

register here →