The OCH numberportabilityguide is available below. It contains explanations of the various abbreviations and terms used in connection with number porting and advice on what to keep in mind before you start.
It's a good idea to familiarize yourself with the Rules & Procedures which is the industry's document on handling number porting, and Transaction Document. Both can be obtained by contacting OCH administration.
If you want to enter into an agreement with OCH you can see what the options are under "New Customer" and then please contact OCH administration.
The industry agreements for number porting are available on the Telecommunication Industry Associations website www.teleindu.dk
At Agency for Data Supply and Infrastructure's website www.sdfi.dk contains information on legislation regarding numberporting and guidance to the allocation of number series for new operators.