Fixed number portability service is a system designed to minimize inconveniences to subscribers of fixed number services (internet telephony, 080 toll-free, main line) arising from the phone number porting and to provide benefits through fair competition by maintaining the existing phone numbers even after changing the operator to another operator.
Number portability application service
Porting numbers between fixed phone services in the same service area
Porting numbers from fixed phone service to internet transfer service in the same service area
Porting numbers from the internet telephony service using fixed phone numbers to fixed phone service in the same service area
Porting numbers between internet telephony services
Porting numbers between toll-free services
Porting numbers between main line services
Applicants
Phone in the name of an individual: subscribers, spouses
Phone in the name of government agencies, local governments, corporations, and other entities: Representatives or head of the department in charge
Article 58 (Telecommunications Number Portability) of the Telecommunications Business Act
Notification of the Ministry of Science and ICT No. 2020-73 (Standards for the Implementation of Number Portability for fixed phone services)
Fixed Number Portability
Find information on filing a complaint and business operation rules related to fixed number portability.
Customer Support Center 1588-0423, 1666-0423
