Another 12,000 borrowers have voluntarily contacted Inland Revenue since the information-sharing agreement came into force.
A recent exchange of information gave Inland Revenue the contact details of another 10,000 borrowers.
Last year the Herald revealed the arrest of Cook Islands man Ngatokotoru Puna, 40, at Auckland Airport as he tried to leave the country.
Puna was the first person arrested under a new hard-line policy, passed in March 2014, that allows an arrest warrant to be issued for the worst student loan defaulters.
Student unions have criticised the border arrest policy as draconian and likely to make overseas Kiwis "student loan refugees" - unable to return home for weddings, funerals or other important events.
Accurate contact information is crucial - an arrest warrant can only be issued if a district court judge is satisfied a person is knowingly avoiding student loan repayment obligations.