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SIM Card Registration for SUN Subscribers (Step-by-Step Guide, Registration Link)

SIM Card Registration for SUN Subscribers (Step-by-Step Guide, Registration Link)

Learn how to register your Sun Cellular SIM card, now part of SMART Communications, to avoid deactivation and enjoy uninterrupted services.

(UPDATED) Sun Cellular has been a prominent player in the telecommunications industry in the Philippines since its inception in 2003. It is known for providing affordable services that cater to the needs of Filipinos who are looking for budget-friendly mobile plans. For years, the company has created a loyal customer base and maintained its position as one of the most preferred mobile networks in the country.

Recently, SMART Communications, the country's leading mobile network provider, fully integrated Sun Cellular as part of its brand and absorbed it into its network. It also means Sun Cellular's prepaid and postpaid services no longer exist, and subscribers can use SMART promos instead.

If you were a former Sun Cellular subscriber, your SIM card has already been migrated to SMART's network, and you can now enjoy the same reliable network and services that SMART is known for.

However, it is important to register your SIM card to avoid deactivation, as this move is in compliance with the government's mandate to register all SIM cards to prevent the use of unregistered SIMs in illegal activities. Registering your SIM card will also ensure that you can continue to enjoy its services without interruption.

You can access the online registration portal for SUN subscribers by clicking the link/button below:

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How to Register your SUN SIM Card?

Registering your SUN SIM Card is just easy. All you have to do is visit the registration portal through the SMART website (as SUN is now integrated with SMART). Once there, simply provide the required information. Here are the steps:

Step 1 – Go to the SUN Registration Portal

To register your SUN SIM card, visit, as SUN is now part of SMART's system.

To register your SUN SIM card, the first step is to go to the registration portal at As the telecom provider has already absorbed SUN into their system, you will be redirected to the SMART registration portal.

Step 2 - Enter your phone number and confirm it with OTP

In the registration portal, enter your phone number and click "Send OTP" to receive a unique code via text message. Verify your number by entering the OTP on the portal and clicking "Verify OTP".

Once you have accessed the registration portal, the next step is to enter your phone number in the space provided on the page. 

Click the "Send OTP" button to receive a one-time password. After entering your phone number, you will receive a text message containing a unique one-time password (OTP) on your phone. Enter the OTP on the portal and click the "Verify OTP" button to confirm your phone number.

Step 3 - Choose registration type, upload photo of your ID and selfie

After verifying your phone number, choose the relevant registration type and ID card type. Then, upload a clear photo of your valid ID and a selfie. 

After verifying your phone number, the next step is to select the type of registration you require, whether it's for a new SIM, an existing SIM, for a minor, or any other relevant category. Once you have made your selection, you must indicate your nationality and select the type of ID card you will upload.

Next, you must upload a clear and detailed photo of your valid ID and a selfie as part of the registration process. Ensure that your ID photo is clear and shows all the necessary details.

Step 4 - Fill in all the required information on the form

After uploading the required documents, complete the form with your personal details and ID card number. Then, click "Next" to provide your address information.

Once you have successfully uploaded the required documents, you must fill in all the necessary information on the registration form. This includes providing your ID card number and personal details such as your full name, gender, and date of birth. 

After providing all the required information, click the "Next" button to input your address information.

Enter your address in the appropriate fields on the form, and provide alternate contact information if available. Click "Next" to proceed.

On the next page, you will be required to enter your address in the appropriate fields on the form. If you have alternate contact information, also fill out the required fields. Once you have entered your address information, click the "Next" button to continue.

Step 5 - Review all details and finish registration

Your SUN SIM Card is now successfully registered after agreeing with the SIM Registration Act.

Before submitting your registration, take a moment to review all the details you have entered to ensure accuracy. Once you are satisfied that everything is correct, agree that you comply with the SIM Registration Act by ticking the check box. Then, click the "Next" button to complete the registration process.

After completing the registration process, you will be redirected to a confirmation page indicating your SIM card's successful registration. Make sure to save the control number or take a screenshot of the confirmation page. You will also receive a confirmation message via SMS indicating that your registration has been successful.

That's it. Your SUN SIM card is now registered – Congrats!

What are the benefits of registering my SUN SIM card?

Registering your Sun SIM card is important because it's required by the National Telecommunications Commission (NTC) to comply with government regulations. By registering your SIM card, you'll follow the rules and avoid any penalties or legal consequences.

Registration also helps protect you from fraudsters who might try to steal your identity or use your phone number for illegal activities. When you provide your personal identification during registration, it becomes much harder for criminals to use your SIM card for malicious purposes.

Another benefit of registering your SIM card is adding an extra layer of security. This means that your phone number is safeguarded against unauthorized use, giving you greater peace of mind.

What happens if I don't register my SIM card?

If you don't register your SIM card within the given period, your mobile services will be suspended, and your phone number deactivated. That could be a hassle, especially if you rely on your mobile phone for important stuff like staying in touch with friends and family or online banking.

So don't delay - make sure you register your SIM card as soon as possible to avoid interruptions to your mobile services. 

Learn more about the SUN SIM card registration here:

Simula na ngayong araw ang pagrerehistro ng mga SIM card alinsunod sa Subscriber Identity Module (SIM) Registration Act...

Posted by Presidential Communications Office on Monday, December 26, 2022


Registering your Sun SIM card is a legal requirement in the Philippines, and you must do so to avoid your number being deactivated. By taking the time to register your Sun SIM card, you're not only complying with the law but also ensuring that your number is protected from unauthorized use. So don't hesitate – to register your Sun SIM card today and enjoy all the benefits that come with a registered SIM card. —iTacloban/AJ Yes/RDV

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