Question: how are oda teams numbered?
Answer: Under this system, ODA numbers delineate specific parentage: The 1st digit identifies the Group (0=10th SFG; 1=1st SFG; 3=3rd SFG; 5=5th SFG; 7=7th SFG). The 2nd digit represents the battalion (1st Battalion=1; 2nd Battalion=2; 3rd Battalion=3; 4th Battalion=4).