@cinebox @paul I'm pretty sure they're not. This would require DNS lookups where the TLD consists entirely of numbers, which a) would create ambiguity between IPs and domain names, and b) the ICANN is not allowing for registration. For ASCII gTLDs, they will only allow 3-63 characters, with only the characters a-z. And non-ASCII TLDs are encoded with a prefix of "xn--", so you couldn't match IPs with that either. (See section 2.2.1 here: https://newgtlds.icann.org/sites/default/files/guidebook-full-04jun12-en.pdf)
A lot of software does a lot of bad and wrong guessing on whether something could be a TLD or not, but if it consists of all numbers, it's actually safe to say that it's not a domain name. Safari is just bad.
@cinebox @paul just you wait for .exe and .pdf. If they hand out .1 though, then I want .0!
But yeah, I think at least on the 3-character minimum they're not budging. 2-char domains are reserved for countries, and while I think they could do single-char domains... idk. Maybe they could be convinced to allow all-digit TLDs if they have 3 or more characters and have a numerical value >255. Now THAT would be fun! I could register those IPs you always see in movies like 355.489.292.881 :D
@paul and Android's keyboard. No one will ever say o k a y i n g
I'm not even going to put the letters together to give it any ideas