The number can be registered by any person, who is 13 years old or older and has an ID or a passport. During the registration of a subscriber that is a natural person we verify: first and last name, PESEL number (if he/she has one) or the name, series and number of the document confirming the subscriber's indentity, and in case of foreigner, who isn't a citizen of a member country or the Swiss Confederation - number of the passport or the residence card.
When a subscriber is not a natural person, the verified information consists of: company name, REGON or NIP identification number, National Court Register or register of business activity number or a number from any other proper register kept by a member country.
