A'TIN

A'TIN is SB19 official fandom name. It was officially established in 2019, after SB19's 1st anniversary.

Name
The name is pronounced as 18 (eighteen), this shows that the number 18 comes first before 19. Pablo (then Sejun) said that "So, kasi, kami, SB19! 18! 19! Kasi, kumbaga, siyempre, 18 muna bago 19. Pag walang 18 (A’TIN), hindi makakarating sa 19." (because we, are SB19! 18! 19! Because, of course, 18 first before 19. If there's no 18, we cannot reach 19).

The name is also a play on the Filipino word (atin), meaning ours, "Another meaning, so if you’re going to read this, it can also be read as "atin" (ours), so all the success, lahat ng natatamo natin ngayon, atin ‘to. Everything is ours. Hindi lang sa amin, kundi sa inyo rin." (eeverything we get now, it’s ours. Everything is ours. Not just to us, but to you as ell).