Of total, 34.7 million phone numbers belonged to Advanced Info Service, or 83.5 per cent of total: 21.5 million or 79.9 per cent; and 13 million or 76.8 million.
On July 31, the last day for the registration, 610,905 phone numbers were registered.
Failing to register before the deadline ended, the remaining users can only receive calls while other voice and data services are suspended.
According to the NBTC, among the 16 million unregistered numbers, only 4.8 million or 30 per cent were used regularly.