Tai Viet[1][2]
Official Unicode Consortium code chart (PDF)
  0 1 2 3 4 5 6 7 8 9 A B C D E F
U+AA8x
U+AA9x
U+AAAx
U+AABx ꪿
U+AACx
U+AADx
Notes
1.^ As of Unicode version 13.0
2.^ Grey areas indicate non-assigned code points