Trainer ID number

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This Pikipek's Trainer's ID number is 291177.

A Pokémon Trainer's ID number (Japanese: IDNo.) is a number that is assigned to a Trainer when they begin their Pokémon journey. It is shown in the Pokémon's summary. It is used, in conjunction with the Trainer's name and gender, to identify whether the Pokémon is an outsider Pokémon by the games.

The smallest possible Trainer ID number is 0. Prior to Generation VII, it is capped at 65535. Starting from Generation VII, it is capped at 999999.

Special ID numbers

Main article: List of notable ID numbers

Sometimes, there are special ID numbers assigned to Pokémon if they come from a non-standard Pokémon game or are received as a prize. Also, for Pokémon not yet hatched from their Eggs, the ID ????? is used. It will turn into the ID number of the Trainer who hatches the Pokémon. It is also used for unpurified Shadow Pokémon. Once purified, the ID number will change to that of the Trainer who snagged it.

Secret ID

From Generation III onward, there is a second, secret ID number, different from the visible one. This number exists purely to make sure that even if two Trainers share the exact same name and gender and the exact same Trainer ID number, the game will still recognize their Pokémon as coming from different Trainers. Usually, this number cannot be viewed; however, certain cheating devices can be used to view it, and there are also calculators to determine it. It also comes into play along with the normal ID number and the personality value in determining if a Pokémon is Shiny. If two different Trainers have the same Trainer name, identical ID numbers and identical hidden ID numbers (a 1 in 4,294,967,296 chance if the names do not differ), the game will recognize the two Trainers as the same, so the Pokémon are not considered to be outsider Pokémon.

Secret IDs from Pokémon obtained prior to Generation VII are five digits long; those from Pokémon obtained in Generation VII are four digits long. Pokémon transferred to Generation VII from the Virtual Console releases of Generations I and II are given a Secret ID of 00000.

Generation VII

From Generation VII onward, the ID number is a six-digit number. A five-digit Trainer ID and a five-digit Secret ID are still generated but are not displayed on the Trainer Card directly. Rather, they are used to calculate the final ID number by using the following formula: IDfinal = IDtrainer + (IDsecret × 65536). The last six digits of the resulting number are what is displayed when the Trainer Card is viewed.

For example, consider a new save file in which the player's assigned Trainer ID and Secret ID are 00033 and 34262, respectively. The final ID number will be 33 + (34262*65536) = 2245394465. However, only the last six digits are used so the Trainer Card will display an ID No. of 394465.

If a Pokémon is transferred to Generation VII from a previous generation, its Trainer's ID number will remain 5 digits long.

Pokémon Lottery Corner

Main article: Pokémon Lottery Corner

Once per week in Generation II and once per day in Generations III, IV, VI, VII, and VIII, the player may take part in the Pokémon Lottery Corner. This involves the generation of a random 5 digit number, which is compared with the player's Pokémon's original Trainer's ID numbers. Depending on the game and the nature of the match-up of digits, the player can receive a prize. This feature was not included in the Generation V games, but returned in the X and Y games as the Loto-ID in Lumiose City.

In other languages

Language Title
Chinese Cantonese ID No.
Mandarin ID No.
Denmark Flag.png Danish ID-nummer
France Flag.png French ID
Germany Flag.png German ID-Nummer
Italy Flag.png Italian ID
South Korea Flag.png Korean IDNo.
Spain Flag.png Spanish N.º ID
Número Identificador*
Sweden Flag.png Swedish ID-nummer

Project Games logo.png This game mechanic article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games.