If you are using 3G/4G non-VoLTE handsets, equipment, or machines, you will not be able to access voice, SMS, mobile data and M2M services for devices that do not have at least 4G capabilities. This means that you won’t be able to access our network unless you upgrade to a newer device.

The old 3G SIM cards cannot support 4G VoLTE or 5G handsets, equipment or machines. Please ensure that you change out your SIM card if you are on a 3G SIM card.

As 3G/4G non-VoLTE handsets, equipment or machines cannot support 4G or 5G networks, please ensure that you are using 4G VoLTE or 5G handsets, equipment or machines.

You are likely to be using 3G handsets, equipment or machines if the network mode setting in your mobile handsets, equipment or machines only supports WCDMA/3G. Please check with the manufacturer or supplier of your handsets, equipment or machines for more information.

You should upgrade soon so that service will not be disrupted when the 3G network is shut down.

For Enterprise customers:
You can contact your Sales Specialist or Account Manager to initiate the 5G SIM change.

For Business Customers:
Submit your request here to get your FREE 5G SIM delivered to your business address.

Alternatively, vist any Singtel Shop and Singtel exclusive retailer with the following supported documents:

1. Business Profile (with at least 6 months validity)
2. Letter of Authorisation with company letterhead, stamp and director's signature (valid for 2 weeks)
3. Bearer's Original NRIC/PR/Employment Pass (minimum 6 months validity). Kindly note that Bearer must be above 21 years old with no outstanding bills under their NRIC. Work permit holders are not eligible.

Yes, the replacement of SIM card is free of charge.

As the mobile service is available on 4G and 5G networks, the service is not disrupted. Hence you are not allowed to do so.

You should use minimally a 4G-compatible device / mobile phone that supports VoLTE to allow you to do a Voice Call (VoLTE). For example, iPhone 6S and above. You may wish to check with your phone or device manufacturer for its specification.

We recommend that you get a 5G-compatible device / mobile phone in order to enjoy the full 5G benefits and experience. Click here to view the list of compatible handsets.