Where to get an EAN-13 barcode?
EAN-13 numbers are assigned by GS1 an international non-profit organisation, that earlier has been called EAN International.
Usually each country would have a national office where manufacturers, producers, labellers or any other interetsed company or person you can apply for GS1 Company Prefix.
GS1 Company Prefix contains digits and is of variable length such that it provides numbering capacity. Single EAN-13 numbers are derived from this prefix and it is the responsibility of the applicant to derive single numbers. Shorter Company Prefixes have higher numbering capacity ( and are therefore more expensive) and longer Company Prefixes have lower numbering capacity ( these are less expensive ).