What is alien number?

Related questions

1. Is 11 a irrational number?
2. What is the highest counting number?
3. How many whole numbers are there between 1 and 100?
4. Is 14 a whole number?
5. What is a number with 100 zeros called?
6. Is Alien Registration Number same as SSN?
7. Where can I find my invoice ID number?
8. Is 11 a whole number?
9. Which are not real numbers?
10. Is 10 a real number?

Tags

1. #resident
2. #uscis
3. #short
4. #cards
5. #unique
6. #assigned
7. #seven
8. #alien
9. #number
10. #issued
11. #after
12. #listed
13. #permanent
14. #found
15. #eight
16. #digit
17. #green
18. #noncitizen
19. #registration