IMEI Registration Measures Address Grey-Market Handsets

The 2023 measures on IMEI registration and grey market handsets respond to a long-standing concern about the volume of mobile devices entering the Cambodian market outside authorised distribution channels. Handsets sold through unofficial channels frequently escape type approval, warranty support, tax collection and, in some cases, basic conformity with safety and radio standards. They can also facilitate fraud, unlawful use and difficulty in tracing devices reported stolen or used in criminal activity.

The measures aim to strengthen the identification and control of devices used on Cambodian mobile networks, to encourage consumers and businesses to acquire handsets through authorised channels and to give operators and authorities better tools to address abuse of the network by non-compliant devices.

Every mobile device that is compliant with international standards carries an International Mobile Equipment Identity (IMEI) that uniquely identifies the device on cellular networks. Operators can use the IMEI to identify the device attempting to use their network, to check that the device is not on a list of stolen or otherwise blocked devices and, in cooperation with the authorities, to take enforcement action against devices that pose specific risks.

The framework contemplates that operators will maintain internal equipment identity registers, that they will share appropriate information with each other and with the authorities and that they will act on blocking instructions in accordance with defined procedures. It also contemplates that consumers and businesses will have some ability to verify the status of an IMEI before purchase.

The measures reinforce the connection between IMEI-based control and the type approval regime for radio equipment. Devices imported and placed on the market through authorised channels are expected to have been through the type approval process, which verifies compliance with technical standards and the conditions under which the device may be used in Cambodia. Devices that enter the market outside these channels frequently bypass this process, which raises safety, interference and consumer-protection concerns.

The framework encourages importers, distributors and retailers to source devices through channels that support type approval, to maintain records of the devices they place on the market and to cooperate with the authorities in cases where non-compliant devices are identified. Enforcement action may be taken against parties that persistently distribute non-compliant devices.

Operators are expected to configure their networks to identify devices by IMEI, to detect duplicate or invalid IMEIs and to take appropriate action based on the status of the device. Blocking of a device may be based on reports of theft, on formal instructions from the authorities or on evidence of misuse, and should be conducted in accordance with defined procedures and with appropriate customer notification where feasible.

Operators are also expected to cooperate with each other so that a device blocked on one network is not simply used on another. Sharing of relevant information, subject to appropriate safeguards, is central to the effectiveness of the framework.

Consumers benefit from clearer information about how to verify the legitimacy of a device before purchase. The framework encourages the availability of tools such as IMEI checking services, information campaigns about the risks of grey market handsets and support in the event that a purchased device is subsequently found to be non-compliant or blocked. Retailers are expected to inform customers of the significance of type approval and of the potential consequences of using non-compliant devices.

Where a customer's device is blocked, appropriate procedures should be available to review the case, to consider representations from the customer and to unblock the device if the concerns can be resolved. Purely punitive blocking, without appropriate procedural safeguards, is not the objective of the framework.

The framework recognises that not all devices are consumer handsets. Enterprise-grade equipment, industrial devices and machine-to-machine modules also carry IMEIs and are subject to the same principles. Enterprises deploying large numbers of such devices should ensure that the devices are sourced through channels that support type approval and that they are registered with the operator in a way that is consistent with the operator's obligations.

For fleet or infrastructure deployments, planning should include an assessment of IMEI-based control mechanisms and of the operational implications of any blocking or investigation that could affect the customer's own equipment.

Enforcement of the measures involves coordination between the sector regulator, the authorities responsible for import control and customs, law enforcement agencies and operators. Aggregated information about the incidence of non-compliant devices, the profile of grey market channels and the effectiveness of blocking measures supports the design of further interventions.

The framework encourages a proportionate approach that focuses on the most significant sources of harm, that provides appropriate opportunities for compliance and that avoids disproportionate impact on ordinary consumers whose devices may inadvertently fall within the scope of enforcement actions.

For operators, the measures reinforce the importance of investment in equipment identity registers, in the operational processes required to receive and act on blocking instructions and in customer-facing procedures for reviewing individual cases. Legal and compliance functions should be involved in the design of these processes to ensure that they respect the rights of subscribers and comply with data protection obligations.

For importers, distributors and retailers, the measures signal that reliance on unofficial channels is increasingly risky. Sourcing arrangements should be reviewed to ensure that devices supplied to the Cambodian market are eligible for type approval and can be identified as compliant. Documentation of supply chain arrangements is important both for regulatory purposes and for defending against enforcement action.

For consumers and enterprises, the measures underline the value of purchasing devices through authorised channels, of retaining evidence of purchase and of using available tools to verify the status of a device before use. Awareness campaigns and support from operators can help translate these expectations into everyday practice.

Lex Civora advises operators, importers, distributors and enterprise customers on the interpretation and application of the IMEI and grey market measures, on the design of compliant sourcing and distribution arrangements and on responses to enforcement actions or blocking decisions.