Cambodia penalises Viettel after SIM cards were registered with another person's ID

The regulator found a mismatch in the registration record

The case began with a consumer complaint to the Telecommunication Regulator of Cambodia (TRC). The complainant said an unknown person had used their identity card to register three Viettel mobile numbers. TRC said one of those numbers was later allegedly used by a fraudster, drawing the identity-card holder into the case despite the registrations being made without their knowledge.

A key part of the regulator's finding concerned the claimed place of purchase. Viettel told TRC that the consumer had bought SIM cards at a shop in Phnom Penh on 8 May 2024. TRC said its evidence placed the consumer in Prey Veng province on that date. The regulator concluded that Viettel had failed to properly comply with the rules governing SIM sales and identity-document checks, and said penalties had been imposed.

The public notice does not disclose the amount or form of those penalties. It supports the conclusion that enforcement action was taken, but not any estimate of the financial size of the sanction.

For practical context, see Cambodia law and taxes. This development also connects with Cambodia approves auction of 1,291 Leng Navatra plots.

Cambodia has a common code for checking the identity on a SIM

Cambodia's national common-code system includes `*1202#` for checking the user identity associated with a mobile SIM. The Ministry of Post and Telecommunications introduced the common codes for all mobile networks from 1 January 2022. The same system uses `1204` to reach the customer service of the relevant mobile operator.

That gives residents a practical way to check the identity information attached to a SIM they are currently using. If the returned information is unexpected, the operator is the first place to raise the discrepancy and create a service record.

There is an important limit. The official guidance describes `*1202#` as a user-identity check; it does not describe it as a nationwide search tool that lists every SIM registered to one passport or identity card. Someone who suspects that their document was used to open an additional number therefore needs more than a check of the SIM already in their phone.

Suspected misuse can be reported to the telecom regulator

TRC's Viettel notice asks the public to report known or suspected irregularities involving the sale, distribution or use of SIM cards. The regulator lists `6789` as its hotline during business hours and also accepts reports through its official electronic channels.

This matters beyond ordinary mobile service. A phone number registered to a real person's documents can become connected to banking, payments or fraud investigations even when that person did not obtain or control the SIM. The Viettel case does not establish that an identity-card holder is responsible for activity carried out through an improperly registered number; it shows why a registration mismatch should be documented rather than ignored.

For a resident who finds incorrect identity data on a current SIM, contacting the operator through `1204` is a sensible first step. If there are signs that an identity document may have been used for another registration, the regulator's `6789` channel provides a route for reporting the suspected misuse. The official notices do not identify a self-service tool that returns a complete list of all SIMs tied to one identity document.