Total 50000 Combination possible involving 888 in 7N.com .
32805 Combination possible involving 888 in 7N.com (Except 4)
20480 Combination possible involving 888 in 7N.com (Except 0 and 4)
All Premium 20480 (Except 0 and 4) Registered
Almost all Registered except 5000-8000 still available to Register which involves 0 at beginning and definitely 4 present in any combination. Sooner or later they might register and then value for your domain raise little more than $75-$100 range.