How to Check SIM Registration Status Through 668

Pakistan’s 668 SIM information service lets you check how many mobile connections are registered against your Computerised National Identity Card (CNIC). It is useful when you have forgotten an old number, suspect that a SIM was issued using your identity, or want to review your records before applying for another connection.

This guide is especially relevant to Pakistanis living in Australia, including people in Sydney, Melbourne, Brisbane, Perth and Adelaide. The 668 service belongs to Pakistan’s telecommunications system, so it checks Pakistani SIM registrations rather than Australian mobile accounts with Telstra, Optus or Vodafone.

What the 668 Service Shows

The 668 system is operated for Pakistan’s SIM information process under the Pakistan Telecommunication Authority (PTA). Its usual purpose is to show the number of active SIMs associated with your CNIC and provide a network-wise summary.

The reply may identify how many connections are linked to each Pakistani mobile operator. It generally does not function as a complete directory showing every mobile number and personal detail. For privacy and security, further verification may be required before an operator discloses information about a particular connection.

A registration count is not necessarily proof that you personally use every listed SIM. An old, unused or transferred connection can remain associated with your identity until it is formally blocked, cancelled or updated through the relevant operator.

Prepare Your CNIC Details

Use the CNIC belonging to the person whose SIM registration record you want to check. Enter the CNIC number without spaces or dashes. For example, a number written on the identity card with separators should be typed as one uninterrupted sequence of digits.

Check the digits carefully before sending the message. A single incorrect number can produce an error or return information for a different record. Do not include your full name, address, bank information, passport details or one-time password in the SMS.

If you are overseas, keep in mind that a Pakistani SIM must usually be active and able to send SMS while roaming. An Australian phone number cannot use 668 to search Australian mobile registrations, and an international roaming arrangement may not support messages to the Pakistani short code.

Send Your CNIC to 668

Open the SMS application on your Pakistani mobile phone and create a new text message. Type your 13-digit CNIC number without hyphens or spaces, then send it to the short code 668. Use the official short code carefully and avoid copying instructions from an unverified social media post or private website.

A network charge may apply for the request, and the response may take a short time during periods of heavy traffic. If your Pakistani SIM is being used in Australia, international roaming charges may also depend on your Pakistani operator and roaming package.

When the message arrives, save it for your records. Avoid forwarding the response publicly because it may contain information connected with your identity. The message is a registration check, not an approval for purchasing, transferring or activating a new SIM.

Understand the Registration Reply

The response normally gives a summary of SIMs registered against the submitted CNIC, often grouped by mobile network. Compare the result with the connections you remember using in Pakistan, including numbers kept for banking alerts, family contact, internet devices or a secondary handset.

A high count deserves attention, especially if you have lived in Australia for several years and rarely use Pakistani mobile services. Old connections may have been forgotten after moving from Lahore, Karachi, Islamabad or another city, while a newly registered SIM may indicate that your identity information needs urgent review.

The 668 message may not reveal the full numbers attached to your CNIC. If you need to identify a specific connection, contact the relevant operator through its official customer service channel or visit an authorised franchise in Pakistan with the required identity documents.

Deal With Unknown SIMs

If the result shows a SIM you do not recognise, contact the mobile network named in the response. Ask for the operator’s formal process for checking, blocking or disowning an unauthorised connection. A franchise may require biometric verification and presentation of the original CNIC.

Do not rely on a shopkeeper, social media account or unofficial agent who promises to remove the connection instantly. Never share a CNIC photograph, biometric information or verification code with an unknown person. Keep screenshots, SMS records and complaint references in case you need to escalate the matter.

People in Australia can ask a trusted family member in Pakistan to visit an authorised operator outlet, but the operator may require the identity holder to complete verification personally. Procedures can vary depending on whether the connection was issued, transferred, blocked or registered under an older record.

Use Official Online and Support Channels

PTA also provides an online SIM information facility commonly associated with the official SIM Information System website. Before entering a CNIC number, check that the web address is an official PTA-related domain and that the connection uses HTTPS. Search results and copied websites can imitate government services and collect identity data.

If the SMS method fails, confirm that the CNIC format is correct, the Pakistani SIM has service and the message was sent from the relevant number. Temporary network problems, roaming restrictions and service changes can prevent a response. Try the official online channel or contact the mobile operator directly rather than repeatedly sending personal details to unknown numbers.

For a complaint about suspected misuse, use PTA’s published complaint and assistance channels. Keep the date of the request, the operator name, the SMS response and any complaint number. These details can help the operator investigate more efficiently.

Know the Difference in Australia

Australian mobile registration works differently from Pakistan’s 668 process. When buying a prepaid or postpaid service from Telstra, Optus, Vodafone or a smaller provider, customers generally complete an identity check under Australian telecommunications and identity-verification requirements. Australian phone records are not searched by sending a CNIC to 668.

If you are living in Melbourne or Sydney and maintain a Pakistani SIM for family calls, bank alerts or travel, review its registration before leaving it inactive for long periods. Roaming costs, expired credit and inactive-service rules can affect whether the number still works, but they do not automatically explain an unfamiliar SIM registered to your CNIC.

Australian residents should also treat unexpected messages about SIM replacement or identity verification as potential scams. The Australian Communications and Media Authority and Scamwatch regularly warn about impersonation, phishing and mobile-number takeover attempts. Do not click suspicious links or provide a Pakistani CNIC, Australian driver licence, passport or banking code in response to an unsolicited message.

A Pakistani SIM check does not replace Australian account security. Use strong account passwords, enable multi-factor authentication where available, and contact your Australian provider through the phone number or website printed on its official bills and service documents.

Send only your CNIC number in the correct format to 668 from a Pakistani mobile connection, review the network-wise response, and follow up directly with the relevant operator if anything looks unfamiliar. If you are in Australia, use an authorised Pakistani representative or official support route when an in-person biometric check is required, and keep your identity documents away from unofficial agents.