How to Use 668 SIM in Pakistan: A Simple Step-by-Step Guide (2026)

Wondering how to use 668 sim in Pakistan to check registered numbers on your CNIC? Here’s a simple, official, step-by-step guide anyone can follow.

If you own a mobile connection in Pakistan, chances are you’ve heard people mention “668” at some point. Maybe a friend told you to text your CNIC to it, or you saw it mentioned in a news report about SIM fraud. But what exactly is it, and how does it work?

Knowing how to use 668 sim in Pakistan is one of the simplest ways to stay on top of your mobile identity. It only takes a few seconds, costs nothing, and can save you from a lot of trouble if someone has misused your CNIC to get a SIM you don’t even know about.

In this guide, we’ll break down what the 668 service actually does, how to use it correctly, and what steps to take once you’ve got your results. No technical jargon — just a clear, friendly walkthrough.

Quick Overview Table

What Exactly Is the 668 Service?

The 668 short code is an official PTA-managed system that lets any mobile user check how many SIM cards are currently registered against their CNIC, broken down by operator — Jazz, Zong, Telenor, and Ufone.

It was introduced because so many people had no idea that extra, unauthorized SIMs were sitting quietly on their identity card. Since every SIM is tied to biometric verification, that number technically belongs to you in the eyes of the law, whether you registered it or not. That’s what makes this small SMS-based check so valuable.

How to Use 668 SIM in Pakistan: Step-by-Step

Here’s exactly how the process works, in the simplest terms possible.

Step 1: Open Your Messaging App

Grab any phone with an active SIM — it doesn’t have to be a smartphone. A basic keypad phone works just fine.

Step 2: Type Your CNIC Number

Enter your 13-digit CNIC number without dashes. For example, if your CNIC is 12345-1234567-1, you’ll type it as 1234512345671.

Step 3: Send It to 668

Send the message to the short code 668. This is a free service, so you won’t be charged for the SMS.

Step 4: Wait for the Reply

Within moments, you should receive an automated reply showing:

• The total number of SIMs registered under your CNIC
• A breakdown by operator (Jazz, Zong, Telenor, Ufone)

Step 5: Compare and Review

Once you have the numbers, sit down and compare them against the SIMs you actually own and use. If the count is higher than expected, that’s your signal to investigate further.

What to Do If You Find Extra SIMs

Discovering an unfamiliar SIM on your CNIC can feel a little alarming, but the fix is straightforward:

• Visit the relevant operator’s franchise (Jazz, Zong, Telenor, or Ufone) with your original CNIC.
• Request the removal or disowning of the unauthorized number.
• Complete biometric verification — usually a quick thumbprint scan.
• Keep any receipt or reference number you’re given, just for your own records.

If you live outside Pakistan, PTA also offers an online facility for overseas Pakistanis to regularize or request the blocking of extra SIMs without visiting a franchise in person.

Required Documents

Before you start the process, make sure you have:

• Original CNIC (must be valid and not expired)
• A phone with any active SIM to send the initial SMS
• A pen and paper (or notes app) to jot down the results for comparison
• Contact details of your operator in case you need to follow up

Benefits of Using the 668 Service

Taking two minutes to check your SIM count comes with several genuine advantages:

• Awareness of your digital identity — you’ll know exactly what’s linked to your CNIC
• Early detection of unauthorized SIMs, before they can be misused
• No cost involved, making it accessible to everyone
• Works without internet, so it’s usable even in areas with poor connectivity
• Supports safer telecom practices across Pakistan by helping PTA maintain accurate records

Contact Details Table

A Few Extra Tips

• Run this check every couple of months as a simple safety habit.
• Never share your CNIC photocopy with unfamiliar shops or individuals.
• If you spot a SIM you don’t recognize, act promptly rather than waiting.
• Always use the official 668 code or PTA’s web portal — avoid unofficial apps that claim to offer the same service, as they may not be safe or accurate.

Frequently Asked Questions (FAQs)

Q1: Is the 668 SIM check service really free? Yes, sending your CNIC number to 668 is completely free of charge across all major networks in Pakistan.

Q2: Do I need internet to use the 668 service? No, it works through a simple SMS, so no internet connection is required.

Q3: What happens if I don’t recognize one of the SIMs shown? You should visit the relevant operator’s franchise with your original CNIC and request that the unauthorized number be removed.

Q4: Can I check someone else’s SIM count using their CNIC? No, this service is meant only for checking your own CNIC using your own phone number.

Q5: How often should I check my SIM count using 668? It’s a good habit to check every two to three months, similar to reviewing a bank statement.

Q6: Does 668 show the actual phone numbers registered on my CNIC? No, it typically shows the count per operator. For specific numbers, you may need to contact the operator’s helpline or visit their service center.

Final Thoughts & Call to Action

Learning how to use 668 sim in Pakistan is one of those small habits that can make a big difference in protecting your identity. It takes less time than making a cup of tea, and it puts you back in control of what’s registered under your name.

Want more practical guides like this one? Head over to Apk eSim for helpful, easy-to-follow articles on SIM verification, eSIM setup, and mobile network tips made for everyday users in Pakistan. For official updates and policies, you can also visit the Pakistan Telecommunication Authority (PTA) website.

Stay curious, stay informed, and keep your mobile identity safe — one quick check at a time.