Notice: Scheduled CelcomDigi Systems Upgrade on 2 and 9 March 2026

This is an important notice for CelcomDigi customers.

We are upgrading our systems on 2 March from 10:00 PM (up to 24 hours) & 9 March from 10:00 PM (up to 24 hours) to serve you better. 

During this period, you will remain connected as voice, SMS, and Internet services are available. You can also continue to pay bills, reload, and purchase add-ons easily. For quick and convenient access to these services, we encourage you to download the CelcomDigi app.

However, a few channels and services will be temporarily unavailable during the upgrade. We recommend planning your activities in advance to ensure a smooth experience.

Channels availability during the scheduled systems upgrade: 

Note:

*Temporarily unavailable on 3 March, from 12:00 AM to 4:00 AM due to systems upgrade

Service availability during the scheduled systems upgrade:

Note:

*Available to all CelcomDigi subscribers (including legacy plans) via UMB/USSD (*800# while oversea) & CelcomDigi Support (WhatsApp or call us at 016-333 1111)

For Port-in or Port-out (MNP) Services

During the systems upgrade on 2 March 2026:

• Enterprise customers: Service unavailable from 28 February to 3 March 2026
• All other customers: Services unavailable from 2 to 3 March 2026
• Port-in, port-out and request resubmissions will resume on 4 March 2026

During the systems upgrade on 9 March 2026:

• Enterprise customers: Service unavailable from 7 to 10 March 2026
• All other customers: Services unavailable from 9 to 10 March 2026
• Port-in, port-out and request resubmissions will resume on 11 March 2026

Thank you for your patience.

Important: Stay vigilant against scams. CelcomDigi will never ask for OTP or any sensitive information through unsolicited calls, SMS or messages related to the system upgrade. If you receive such communications, please disregard and report to CelcomDigi immediately.