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Messaging, Social Media & Telecoms Technical Explainer

What is an IMEI and what does it identify?

An IMEI is an international mobile equipment identity used by networks to identify mobile radio equipment. It can link a subscription's network activity to a handset, but not directly to its owner or user.

Preserve every device identity

Dual-SIM or multi-radio devices may have more than one IMEI. Record all values and their source - device settings, hardware, packaging, provider records or extraction - without assuming they are interchangeable.

Provider data can show which IMSI or SIM used an IMEI during a period, helping reconstruct movement of subscriptions between handsets.

Attribute equipment use separately

Compare IMEI with serial numbers, account and SIM records, local application data, possession and location. A purchased device may be shared, borrowed, stolen, sold or remotely controlled.

Report the network association to equipment first, followed by the dated evidence connecting that hardware to a person. Preserve discrepancies for investigation rather than silently correcting identifiers.

The point to remember

IMEI identifies mobile equipment; use provider and device evidence to establish which subscription and person used it at the relevant time.

Reference: MSG-053Messaging, Social Media & Telecoms