In 2025, even your SIM card has to know who you are. When Amina tried to call her dad using her 9mobile line, the call failed. The reason? She never linked her NIN. And like thousands of Nigerians, she didn’t realize her number could be blocked without warning.

If you’re using 9mobile, linking your NIN to your 9mobile number is a must. Whether you’re registering a new SIM, restoring your line, or just trying to stay ahead of deactivation warnings, this guide walks you through every step — fast, easy, and stress-free.

What is NIN and Its Importance

The National Identification Number (NIN) is your official digital identity, assigned by the National Identity Management Commission (NIMC). It’s an 11-digit number linked to your name, biometric data, and legal documents.

To increase security and reduce fraud, the Nigerian government mandates all phone numbers be linked to NINs — including 9mobile. Failure to comply can result in SIM deactivation, loss of access to mobile banking, and communication restrictions.

How To Register For NIN In Nigeria

Before linking, you need a valid NIN. If you haven’t registered yet, here’s how:

1. Visit a certified NIMC Enrollment Center — including NIMC branches, some banks, or 9mobile experience centers.
2. Fill out the pre-enrollment form at nimc.gov.ng and print your slip.
3. Bring a valid ID (voter card, BVN, birth certificate, passport, etc.).
4. Your fingerprints and photograph will be taken.
5. You’ll receive a NIN slip with your 11-digit number after processing.

To retrieve your NIN, dial *346# from the phone number you registered with.

How To Link NIN To A 9mobile Line

Now let’s get to the real deal — linking your NIN to your 9mobile number. In 2025, there are several methods to do this.

How to Link Your NIN to Your 9mobile Line Using USSD

Quickest method, no internet required:

1. Dial *996# on your 9mobile line.
2. Select the “NIN linking” option.
3. Enter your 11-digit NIN and submit.
4. Wait for a confirmation message.

This works instantly and is free of charge.

How to Link Your NIN to Your 9mobile Line via SMS

For those who prefer texting:

1. Type: NIN [your 11-digit NIN]
   Example: NIN 12345678901
2. Send the SMS to 200.
3. Wait for confirmation from 9mobile.

SMS method is simple and works on any phone.

How to Link Your NIN to Your 9mobile Line Through the NIMC Mobile App

Linking via the official NIMC Mobile App gives direct access to your NIMC record:

1. Download the MWS: NIMC Mobile ID App from your app store.
2. Log in using your NIN and a registered phone number.
3. Go to the “Link My Number” or “My Devices” section.
4. Select 9mobile as the provider.
5. Enter your number and complete the process.

It’s secure and updates directly from NIMC.

How to Link Your NIN to Your 9mobile Line Through the 9mobile NIN Portal

9mobile also offers a web-based method:

1. Visit https://9mobile.com.ng/nin
2. Enter your phone number and NIN.
3. Complete the verification process (usually with an OTP).
4. Submit and wait for a success message.

This is best for users managing multiple 9mobile lines.

How to Confirm Your 9mobile Line is Linked to Your NIN

You can confirm your linking status easily:

• Dial *996# and select “Check NIN Status”.
• Visit the 9mobile NIN portal to recheck your submission.
• You should also receive a confirmation SMS if your NIN is successfully linked.

What To Do When You Run Into Problems

Problems linking your NIN to 9mobile? Try these solutions:

• Make sure your NIN is valid and correctly entered.
• Wait at least 24 hours — processing may be delayed.
• Check that the line you’re linking is registered in your name.
• Visit a 9mobile experience center for manual support.
• Call 9mobile customer care at 200 for further help.

FAQs

1. Is there a 2025 deadline for linking NIN to 9mobile?
Yes, and missing it could result in restricted SIM functionality. Check Plug.ng or 9mobile’s site for current deadlines.

2. Can I link more than one 9mobile number to my NIN?
Yes, NIMC allows multiple numbers to be linked to the same NIN.

3. I got a confirmation SMS but still can’t make calls. What should I do?
Dial *996# to verify. If it’s linked but still restricted, contact 9mobile support.

4. What if I don’t remember my NIN?
Dial *346# from the number you used during enrollment to retrieve it.

5. Is there a fee for linking my NIN to 9mobile?
No, all linking methods are completely free.

Conclusion

Your 9mobile line is only as secure as your NIN link. In 2025, staying connected means staying compliant. Whether you use USSD, SMS, the NIMC app, or 9mobile’s portal, linking your NIN takes just a few minutes. Don’t wait for your SIM to be deactivated — link it today and avoid unnecessary disruption.

For more telecom tips and smart digital guides, stay with Plug.ng your trusted PLUG to everything!

For more digital guides like this, and updates on MTN and other network providers it locked on Plug.ng — Nigeria’s go-to plug for everything!

Also Check: List of all 9Mobile data plans, bundles, prices and codes