In an apology, Singtel CEO Ng Tian Chong said on Mar 19 that the disruptions were caused by a “mechanical fault” and “should not have happened”.
On Mar 16, around 15 per cent of Singtel users started experiencing mobile connectivity issues from about 10.30am.
Though 4G services were restored by around 1.30pm and 5G services were progressively from 2.45pm, full 5G services were not restored until around 8pm that day.
Ms Teo said that preliminary reports showed the Mar 16 incident affected more than 600,000 Singtel mobile customers and lasted for about nine hours.
In a separate incident a day later, around 2,000 customers faced mobile connectivity issues due to “a software bug from an earlier pre-planned IT system upgrade”.




