PTA Starts Blocking WhatsApp Accounts Linked to Inactive SIM Cards
The Pakistan Telecommunication Authority has started blocking WhatsApp accounts registered with inactive SIM cards — turning months of warnings into actual enforcement. PTA officials confirmed on 28 October 2026 that the blocking process has begun, following an awareness campaign that urged users to keep their WhatsApp accounts linked to active mobile numbers in their own use.
If your WhatsApp is still registered on an old, forgotten or cancelled SIM, your account may already be at risk. The regulator says this is no longer a future threat: enforcement has started, and accounts tied to numbers the original owners no longer control are being cut off.
Why inactive SIMs are being targeted
The problem is about control. When a SIM card goes inactive, cancelled or unused for a long time, it does not simply disappear — telecom operators may eventually reissue that number to another subscriber. If a WhatsApp account remains linked to the old number, the original owner can lose control of the account entirely.
The danger is concrete: a scammer who receives a reissued number can request the WhatsApp verification code sent to it and take over the account — along with its chats, contact list and personal data. PTA says some inactive numbers were already being used for fraud and other illegal activities, which is what pushed the regulator from warnings to action.
A Senate committee has separately raised concerns about the misuse of WhatsApp accounts and alleged illegal use of SIM cards in cases of financial fraud — the same misuse the PTA’s blocking drive is meant to shut down.
Months of warnings before the block
This move did not come out of nowhere. The PTA had warned in September that WhatsApp accounts associated with inactive SIMs could face blocking, saying some numbers were being used for deceptive activities. Before that, in May, the regulator cautioned that WhatsApp accounts linked to blocked, cancelled, inactive or unregistered SIMs could become inaccessible.
Users were given months of notice through the awareness campaign, and the authority advised them to update their WhatsApp registration if their previously linked SIMs had been deactivated, cancelled or were no longer in use. The latest action signals that the PTA has moved beyond issuing warnings and has started enforcing the measure.
What the PTA has not done is publish detailed public figures on how many accounts are affected, or a fixed timeline for completing the blocking process. It has also not announced a final deadline — accounts on inactive SIMs could face blockage at any time, which means the safest move is to act now rather than wait for a formal notice.
What users should do right now
The PTA’s advice is straightforward. First, check the status of your SIM cards — through the PTA’s SIM Information System or your mobile operator’s helpline — and confirm that the number your WhatsApp is registered with is active and in your own use.
Second, if you have changed your mobile number, move your WhatsApp registration to the new number using WhatsApp’s built-in Change Number feature. The transfer keeps your chats, groups and settings while shifting the account to a number you control. Users with issues related to SIM registration or inactive numbers are advised to contact their mobile company’s franchise or customer service centre.
The key point: do it before a block happens, not after. Once a number has been reassigned to someone else, recovering the old account is not guaranteed — and an unexpected logout could mean losing access to chats, contacts and personal data permanently.
Part of a wider security push
The WhatsApp blocking drive sits inside a broader PTA enforcement wave in 2026. The regulator’s dark-web monitoring has logged hundreds of cyber threats over the past year, and the authority has been publicly warning that citizens routinely face fraudulent calls and fake messages.
For a country where WhatsApp is the default channel for everything from family groups to business deals, the message is simple: the number behind your WhatsApp account matters as much as the account itself. If that number is dead, your account is living on borrowed time.
Read also: PTA Announces 120-Day Tax-Free Mobile Registration for Overseas Pakistanis
Read also: PTA Dark Web Watch Logged 326 Cyber Threats in a Year
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