CSL System Maintenance and Schedule
3G & 4G Services will be affected during 02:00-04:00, actual outage time less than 15 mins
| Date | Affected Area |
| 2-Dec-2025 | TsuenWan, WanChai |
| 4-Dec-2025 | Island, YuenLong |
| 9-Dec-2025 | Central West, Eastern, IslandDistrict, KowloonCity, Kwai Tsing, Kwun Tong, Mong Kok, MTR, Northern, SaiKung, ShamShuiPo, ShaTin, Southern, TuenMun, TaiPo, TusenWan, WanChai, WongTaiSin, YuenLong, YauTsim |
| 11-Dec-2025 | Kwai Tsing, KwunTong, Southern |
| 16-Dec-2025 | ShamShuiPo, ShaTin, TsuenWan, WanChai |
| 18-Dec-2025 | Island, TsuenWan, YuenLong |