Register for a free KPN Developer account. This account will grant you access to the KPN Things Portal with a freemium registration.
Things Portal
Create password
After registration you receive an activation email. It could take some time. Click the activation link (Stel uw wachtwoord in via accountbeheer) in the email and create a password. Now your KPN Developer account is activated.
Log in to the KPN Developer Portal
After registration you will end on a login page asking for your user name. Enter your email address here.
Then enter your newly created password and click Doorgaan to continue.