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Tenaga Nasional Berhad (TNB) has established a Call Management Centre (CMC), offering one-stop communication to respond to outage management during breakdowns.

Just dial or SMS 15454 anywhere in Peninsula Malaysia and where there is mobile coverage at the cost of a local call for voice calls, and toll-free for SMS. It's easy and effective.

Voice Calls

All calls are managed by trained customer service agents who will respond to customer inquiries as well as request for service and assistance during power outage situations. Information from callers are communicated through TNB Outage Management System (TOMS), and will be attended to by Service Management Centers nearest to outage location nationwide.atwork3

When a customer makes a call, he or she only needs to furnish these particulars:

  1. His or her contact number.
  2. Name & Address
  3. For power breakdown report, customer is advised to provide detailed information on the disruption to determine whether the fault is restricted to the customer's premise or from TNB's supply system. Customer will also be advised to provide information on whether the disruption is affecting the premise alone or to neighbouring houses.


The 15454 SMS Service enables customers to report breakdowns and faulty street lights. The service is available for Celcom, Digi and Maxis mobile phone subscribers.

To submit your report, just follow the 3 simple steps!


  1. Type REG or DFTR
  2. Send to 15454
  3. Follow the simple instructions

To report a power outage at your registered premise or at another location

  1. Type BD
  2. Send to 15454
  3. Follow the simple instructions

To report on a faulty street lighting

  1. Type L
  2. Send to 15454
  3. Follow the simple instructions


  1. Fixed line calls will be charged as local calls
  2. Cell phone calls are subject to charges by service providers
  3. SMS' are free