• Value-Added
    StarHub Business Site
    StarHub Business Site
  • Value-Added

Do more on your mobile

Validity Extension Packs for Prepaid Main Wallet

Have unused credit that are expiring soon? All StarHub Mobile Prepaid  subscribers can now extend the Main wallet validity of their active voice SIM with a nominal fee by dialing *123*200#. Simply follow on-screen instructions to choose your desired number of days of extension. You will receive an SMS upon successful activation.

Find out more

Number of days


30 days $0.60
60 days $0.99
90 days $1.40

Note: Multiple packs can be purchased as long as your main wallet validity does not exceed the maximum period of 180 days.

Happy Xtra Service

Have you ever been in a situation where your call was abruptly terminated due to the insufficient credit balance on your prepaid mobile line? Now, thanks to the Happy Xtra Service, you will never have to face that situation again! 

With this service, you can redeem 2 minutes of local talktime* and 10 local outgoing SMS, FREE, so you will always be able to complete calls even before your next top-up.

Find out more


  • * 1st min block deduction applies

On-Demand Unlimited Incoming Calls

All prepaid customers may also subscribe to our On-Demand Unlimited Incoming Calls at just 59 cents a day!

To activate: Dial *123*5*1# and follow on-screen instructions to complete. You will receive an SMS upon successful activation and a daily fee of $0.59 will be charged.

To de-activate: Dial *123*5*1# again and follow on-screen instructions to complete. Should you de-activate before the 3rd day, daily fee of $0.59 will still be chargeable till it lapses on the 4th day.

Alternatively, you can activate and deactivate via Happy Prepaid App.

Happy Prepaid

The one-stop app to check your prepaid balance, top up, buy plans anytime, anywhere!



  • To check for eligibility of this service, please dial *123*5*1#

One-time activation fee


Per day nominal fee


on an auto-recurring 3-day basis

Connecting Tones

Connecting Tones is a mobile Value-Added Service that lets your callers hear a song when they call your mobile phone.

Service subscription fee**


(with FREE StarHub Connecting Tones)

Each Connecting Tones purchase


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Prepaid Roaming FAQ
Mobile Promotions
International Calls

Talk to the world with StarHub IDD 018.

Happy IDD 016

Cheaper calls to China & Malaysa.

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