From Bulbanews, your community Pokémon newspaper.
Code can be used until end of March
Serena's Fennekin is now available to Japanese players using the common serial code "SERENA01" until March 31, 2015. This Fennekin can be obtained in both Pokémon X and Y and Pokémon Omega Ruby and Alpha Sapphire.
The code was be broadcast in the interactive features of the the episode that aired on Feb. 26 in Japan, XY062.
This Fennekin is female, level 15, in a Cherish Ball, holding a Destiny Knot; it has a Classic Ribbon, the Ability Blaze, a Hardy nature, the original Trainer セレナ Serena (with the Trainer ID number 02265). It knows Scratch, Flamethrower, and Hidden Power. It was met in Lumiose City.