Category: Explainers

  • 667 vs 668 in Pakistan: What Each Code Does

    Independent telecom information guide · Official sources linked · We never store CNIC or phone numbers

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    Explainer

    667 vs 668 in Pakistan: What Each Code Does

    By SIMCheck Editorial Team · Last verified October 2026 · 7 min read
    668 is used for an operator-wise count of SIMs against your CNIC. 667 is associated with information about the SIM in your own handset and mobile-number portability workflows.

    Use the code that matches the task

    Start with the question you need answered: all-network count against your identity, or information about the SIM you are currently using.

    668 for the CNIC audit

    Send the 13 CNIC digits without dashes to 668. Charges and response formatting can change, so keep enough balance and verify official guidance.

    667 for the SIM in hand

    The 667 route applies to the connection from which the request is sent. It is not an unrestricted lookup for any third-party number.

    Privacy reminder: Do not use unofficial tools that promise another person’s name, address, complete CNIC or live location. Keep identity details on official channels.

    Official sources

    For an up-to-date self-check, use PTA’s SIM Information System. For account-specific questions, use the official website, app, helpline or authorized service centre of your operator.

    Related guides

    CNIC SIM check

    Read guide →

    PTA 668 guide

    Read guide →

    Fraud safety

    Read guide →

  • Biometric SIM Verification in Pakistan

    Independent telecom information guide · Official sources linked · We never store CNIC or phone numbers

    Home › Blog › Verification

    Verification

    Biometric SIM Verification in Pakistan

    By SIMCheck Editorial Team · Last verified October 2026 · 7 min read
    Biometric verification should happen only through an authorized operator process. Never provide a fingerprint for a promised payment, aid registration or unrelated offer.

    Why biometric verification exists

    The process is intended to confirm that the person activating or changing a SIM matches the identity document.

    Use an authorized centre

    Check the outlet or service centre before providing a fingerprint. Keep the receipt or transaction reference.

    If verification fails

    Ask the operator for its current retry or identity-support process. Do not allow repeated scans for an unrelated transaction.

    Privacy reminder: Do not use unofficial tools that promise another person’s name, address, complete CNIC or live location. Keep identity details on official channels.

    Official sources

    For an up-to-date self-check, use PTA’s SIM Information System. For account-specific questions, use the official website, app, helpline or authorized service centre of your operator.

    Related guides

    CNIC SIM check

    Read guide →

    PTA 668 guide

    Read guide →

    Fraud safety

    Read guide →

  • SIM Swap Fraud: Warning Signs and Immediate Steps

    Independent telecom information guide · Official sources linked · We never store CNIC or phone numbers

    Home › Blog › Security

    Security

    SIM Swap Fraud: Warning Signs and Immediate Steps

    By SIMCheck Editorial Team · Last verified October 2026 · 7 min read
    A sudden loss of calls and messages can be a SIM-swap warning. Contact the operator and important account providers from another secure device.

    Recognize warning signs

    Unexpected loss of service, password-reset alerts and unrequested OTP activity deserve immediate attention.

    Limit the damage

    Contact the operator, bank, mobile wallet and primary email provider using verified contact details.

    Strengthen recovery

    Use strong unique passwords, review active sessions and prefer an authenticator app where a service supports it.

    Privacy reminder: Do not use unofficial tools that promise another person’s name, address, complete CNIC or live location. Keep identity details on official channels.

    Official sources

    For an up-to-date self-check, use PTA’s SIM Information System. For account-specific questions, use the official website, app, helpline or authorized service centre of your operator.

    Related guides

    CNIC SIM check

    Read guide →

    PTA 668 guide

    Read guide →

    Fraud safety

    Read guide →