A guide on

How to activate your physical Zero1 SIM card

Last updated 07 Jan 2025

Quick Guide: Activate Your Physical Zero1 SIM Card

Note for port-in numbers

The port-in process will begin only after you start activating the SIM card. Your previous carrier will usually disconnect within 3 business days. You may begin using Zero1 services after your previous carrier’s signal disconnects.

Note for self-collected SIMs from Mosi Mosi or ShortQ

Do initiate your SIM activation requests only after 2pm on the following business day if you have collected your SIM card on a Friday / Saturday / Sunday / eve of public holiday.

Once you receive your SIM card, activating it is simple and hassle-free with Zero1! You can complete the process through the Zero1 app or on the Zero1 website:

In the app: Simply log in and select the SIM activation icon to get started.
On the website: You’ll find the activation link in your order confirmation email or by scanning the QR code in the SIM card packaging.

Once you’re on the activation page, simply follow the steps, and your SIM card will be up and running in no time!

Log in to your Zero1 account
Enter your SIM card details
Verify your identity via Singpass
Activation in progress
SIM card activated
1. For new numbers
2. For port-in numbers

Step 1: Log in to your Zero1 account

1. Enter your email and password to log in to your Zero1 account.

2. After logging in, follow the instructions to activate your SIM card.

Step 2: Enter your SIM card details

Enter the SIM card serial number or select “Scan” to scan the barcode to initiate the activation process.

Step 3: Verify your identity via Singpass

1. Select the Singpass button provided on the page.

2. You will be redirected to the Singpass login page. Log in using your Singpass credentials.

3. Authorise the request to share your details with Zero1.

Step 4: Activation in progress

Once your information is submitted, the activation process will begin.

For new numbers

SIM card activation is immediate, allowing you to start using Zero1 services right away.

For port-in numbers

Activation may take up to 3 business days. You may begin using Zero1 services as soon as your previous carrier’s signal disconnects.

General FAQ

1. How long does it take to activate my physical SIM card?

For new numbers, physical SIM card activation is immediate, allowing you to start using Zero1 services right away.
For port-in numbers, activation may take up to 3 business days. You may begin using Zero1 services as soon as your previous carrier’s signal disconnects.

2. When can I activate my physical SIM card if I choose self-collection?

If you collected your SIM card at Mosi Mosi or ShortQ on a Friday / Saturday / Sunday, you may only initiate the activation request after 2pm on Monday. This applies to both new lines and port in mobile services.

3. Can I activate my physical SIM card on any mobile device?

Yes, you can activate your physical SIM card on any compatible mobile device. Ensure that your device is unlocked (not tied to a specific carrier) and supports the Zero1 network.

4. Can I activate my physical SIM card without using Singpass?

No, Singpass verification is required for identity verification as part of the activation process to ensure security.

5. Do I need an internet connection to activate my physical SIM card?

Yes, an internet connection is required to log in to your Zero1 account and complete the activation process through the Zero1 app or activation page.

6. How will I know if my physical SIM card has been successfully activated?

You will receive a confirmation email once your SIM card is activated. For new numbers, you may insert your SIM card immediately. For port-in numbers, wait for your previous carrier’s signal to disappear, then insert your Zero1 SIM card.

7. What should I do if I am unable to activate my physical SIM card?

If you encounter issues during activation, please contact Zero1 Customer Support for assistance.

Don't have the Zero1 mobile app yet?

Google Play Store
for Android devices

Apple App Store
for Apple devices

Having issues?

We are happy to help, just message us on Facebook or send us an email at yes@zero1.sg should you encounter any challenges.

More information

Zero1 develops life solutions by making it #AllAboutYou, ensuring that you receive #OnlyTheBest of what we can offer.

Zero1 is a licensed Mobile Virtual Network Operator (MVNO) that provides a number of mobile plans with all your connectivity needs. Do check out our other offerings on the Zero1 website today.

Get Started Today!

This guide is part of a series of guides to help users get started on their Zero1 connectivity journey.

Discover how to set up your new Zero1 SIM via the links below:

A Guide On How to Activate Your Physical SIM Card

A Guide on How to Activate Your eSIM