- Who
- Mercado Libre
- What
- 643 people
- Where
- Mexico (Ciudad de México)
- When
The most people unboxing simultaneously is 643, and was achieved by Mercado Libre (Mexico) at Parque Bicentenario, in Mexico City, Mexico, on 28 September 2019.
The purpose of the event was to celebrate the 20th anniversary of Mercado Libre. Participants unboxed a commercially available commemorative pin and after the record attempt enjoyed a concert.