How to port your mobile number from Singtel to Starhub

Feb 10, 2019 1:36:12 AM / by Vu Long Tran

I am looking to change my mobile service from Singtel to Starhub, and keep my primary number. So I want to share you my porting process.

Reason for the change if you are wondering - I am changing from Singtel to Starhub, mainly as I am in a new office to Fraser Tower and my 4G coverage for using mobile data is not optimal at the high level my office, when I am looking to tethering internet from my mobile for my laptop to have faster a internet. Note - It is a new building and up quite high, so my SingTel 4G/ 3G signals may be poor as a result of not having enough range of SingTel's current infrastructure in my new area.

So after going through the steps online via starhub.com, then you want to "Select Your Number" step.

Select Your Number with Starhub

  1. In "Select Your Number", select "Port from another telco".
  2. Enter your Singapore phone number under "Enter the 8-digit number"
  3. Select "Yes/ No" for whether you own this number for the question "Do you own this number?"
  4. Great thing that they note here, is that you can "port any Singtel/ M1/ Circles.Life/ MyRepublic/ Zero/ Zero 1 Postpaid number to StarHub". There may be nuances around this for each telco provider, so be wary, especially with the less mature providers at the moment.
Porting number on Starhub
Port from another telco
Porting number on Starhub
Singtel/ M1/ Circles.Life postpaid mobile number porting

Porting number on Starhub
StarHub Number Porting Terms & Conditions

Then, you will receive details around the Number Porting Terms & Conditions that you will need to agree to, here are the details here so you know what to expect.

I/WE* wish to sign up for Full Mobile Number Portability service with StarHub.

I/WE* understand that upon commencement of the Full Mobile Number Portability service with StarHub, all existing services associated with the existing mobile number provided by existing Service Provider(s) will be automatically terminated. I shall not hold StarHub responsible for any loss, penalty damage or inconvenience arising from the termination of service with the existing Service Provider(s).

I/WE* shall be responsible for all charges (such as equipment plan/ price plan/ contractual penalty, etc) for service signed up with StarHub until my existing mobile number(s) has/have been transferred

I/WE* agree to the proper disposal of the SIM Card from the existing Service Provider(s)

I/WE* understand that there will be service interruptions to my/our* existing mobile line during the Full Mobile Number Portability provisioning process^^

I/WE* acknowledge that it would be necessary to exchange certain information regarding my/ our existing and new mobile services subscriptions in order for the Full Mobile Number Portability service to be provisioned. I/We* authorise StarHub to communicate with the existing Service Provider and disclose and receive such information as may be necessary in order to provide the Full Mobile Number Portability service.

I/WE* acknowledge and understand that I/WE* have to pay for all outstanding charges imposed by my/ our* existing Service provider(s) for terminating the mobile service(s) prematurely or otherwise.

I/WE* confirm that I/WE* have provided full and accurate information to StarHub. I/WE* have read and agree to be bound by all the terms and conditions herein as well as StarHub's terms and conditions for info-communications Services# and such other terms and conditions as may be agreed or accepted by me/ us* .

I/WE* acknowledge and agree that if StarHub suspends or terminates any or all the services that I/WE* signed up with StarHub pursuant to and in accordance with StarHub's terms and conditions for Info-communications Services, StarHub is entitled return my/our* existing Service Provider(or to the Service Provider which the porting originates from, as the case may be), and thereafter StarHub will not be able restore the usage of my/our* existing mobile number for any reason or whatsoever

Once you are comfortable with this, then you will be asked to select a delivery date/ time and make sure you have the right paperwork on the day of delivery.

  • A print-out of the order confirmation email
  • Your physical NRIC* (Singapore Citizens & Permanent Residents) or physical FIN Pass* (Foreigners) with a minimum validity of 6 months

Example from my success screen here for your reference.

Porting number on Starhub

Additional information (optional context)

Essentially Starhub, M1, Singtel all follow IMDA's requirements. This is important given the stickiness requirement of your mobile number for online and modern services such as PayNow and SingPass. Essentially it is:

Full Mobile Number Portability is a solution that allows consumers to keep one mobile number for life, even when they switch operators. It works via a central database system in a multi-operator environment, in which all ported mobile subscribers’ numbers and routing information are kept. When a call/SMS/MMS is made to a ported mobile subscriber under the solution, the caller’s mobile operator will check against the central database information and route the call/SMS/MMS directly to the ported subscriber’s new operator.

Source: https://www.imda.gov.sg/news-and-events/Media-Room/archived/ida/Media-Releases/2008/20080416085608 

IMDA full mobile number portability
IMDA full mobile number portability

Here's some details on some of these local telco's overall Full Mobile Number Portability guidance.

Starhub Full Mobile Number Portability guidance

1. What is Full Mobile Number Portability?

Full Mobile Number Portability is an enhanced mobile number portability solution that will allow you to retain full use of your existing phone number, even when you switch service providers. As such, you will not have to go through the hassle of updating all your contacts on a new number from your new service provider.

Prepaid and postpaid mobile subscribers can make use of this solution to retain their original phone numbers. However, the service is only applicable for prepaid to prepaid and postpaid to postpaid mobile subscribers only. (Starhub)

2. How is Full Mobile Number Portability different from the previous mobile number portability solution?

The previous mobile number portability scheme is based on a call-forwarding solution. As such, subscribers will possess two mobile numbers (the original mobile number and the new mobile number issued by the new service provider which they switched to). A call made to the original number at the previous service provider will be forwarded to the new number under the call-forwarding approach. When a subscriber under the call-forwarding solution makes a call or sends an SMS, the new number will be reflected on the recipient's phone. Furthermore, the subscriber will not be able to receive MMS on his original number with the call-forwarding solution.

The call-forwarding solution also only applies to post-paid mobile subscribers.

Full Mobile Number Portability will eliminate these limitations, and also extend mobile number portability to prepaid mobile subscribers. (Starhub)

Full number portability


M1 Full Mobile Number Portability guidance

  1. What is Full Mobile Number Portability? Full Mobile Number Portability is an enhanced solution that allows you to retain full use of your existing phone number, even when you switch to M1. It saves you the hassle of having to inform all your contacts that you have changed your number. (M1)
  2. Who can enjoy Full Mobile Number Portability? All prepaid and postpaid mobile customers can make use of Full Mobile Number Portability.However, if your mobile service has been terminated or suspended, you may not be able to use Full Mobile Number Portability to regain the number given up during the service suspension or termination. (M1)
Full number portability


Topics: telecom

Vu Long Tran

Written by Vu Long Tran

Solutions Engineer APAC. ex-@Forrester consultant. Writing on #cloud #howto guides and #tech tinkering!