I'm confused on this too. When you put in the date/time/# it shows you all avail for that specific number right? So if I put in 4 but there's one for 5 I won't see that, is that correct? Assuming I'm right,
I'm guessing people search for various numbers since I see people who say they only need 4 but found one for 5 and then called and had it downsized. Or am I missing something?