ISMN Ranges / Check Digit Calculator
Ranges of ISMN publisher identifiers
List of ranges of ISMN publisher IDs sorted by country or region, list of ranges of ISMN publisher IDs sorted by number and list of publisher IDs allocated to publishers directly by the International ISMN Agency
Check digit calculator
Calculate the check digit belonging to a given publisher element and item element of an ISMN.
Please note: All publisher elements must fit into the general number scheme: