Is there a limit as to the number of items you can import using numbered list? Is there a maximum number you can import in the numbered list?
Believe it is 999,999,999 items (one short of a billion) in any list including numbered list.
The number given by @Misbah is correct, but it's a consecutive number. So even if you delete values they still count in this.
It's a nuance that usually isn't an issue, but if you have a large list that is completely cleared overnight (delete all items) and recreated this could add up significantly and in time reach the limit.
All the best,