There are NO Four-Number .com domains available in the wild for you to register. So the next best thing is domains with five numbers, e.g. 12345.com But already 53%+ of that namespace - or is it, "numberspace" - has been taken! There are 46,216 five-number .com domains still available for registration - out of 100,000 possible combinations. Get the list - fresh from the oven - in TXT format. The price is $9. Post SOLD here to claim, followed by a PM.