Regulations Governing Number Portability Article 17
The service contract between a Fixed Network Operator and its Subscribers shall, in a distinct way, state the following proceedings:1. Subscriber may request for the provision of Number Portability from the implementation date of provision of Network Portability service.2. Mobile Operators may offer a Subscriber's data necessary for the provision of Number Portability to other Operators, Type II Telecommunications Operators, and the Administrator of Concentrated Databases.3. Mobile Operators may charge fees for porting process of Number Portability in accordance with Paragraph 1 of Article 43.4. The operational procedure of the remaining sum of pre-paid card when Mobile Operators provide Number Portability to the pre-paid card subscribers.If the service contract between a Mobile Operator and its original Subscribers has not contained the provisions set forth in the preceding paragraph, the Mobile Operators shall inform its original Subscribers by written form within one month from the implementation date of Number Portability.