Bellerin was a regular with Spain earlier in his career, but a series of injuries have meant he has been on the outs for several seasons.
Now he is back with his national teammates, and could not be happier.
"Yes, I am so happy getting back home. It has been almost five years since the last time, so I am very happy," Bellerin said in an interview with the Royal Spanish Football Federation.
"They have been tough years, and they always are when you cannot join the national team, but I am very proud and happy now.
"I can't wait to start."