3 ms·

FB has 2a00::/12 (and probably other blocks?) and can make something that looks like its company name from [0-9a-f]. Why wouldn't it do something harmless and f

FB has 2a00::/12 (and probably other blocks?) and can make something that looks like its company name from [0-9a-f]. Why wouldn't it do something harmless and fun like this? It's not as if it requires special dispensation or is breaking any rules.

gk1 6y ago
I don't think the person was implying it's bad. Just pointing out an easter egg.
- cranekam 6y ago
  Ah, well if that’s the case then I apologise. My bad!
detaro 6y ago
A single company does not get a /12 prefix. 2a00::/12 is almost half of the space currently allocated to all of RIPE NCC. Facebook seems to have 2a03:2880::/29 out of that /12, and a /40 through ARIN (2620:0:1c00::/40)
- vvG94KbDUtRa 6y ago
  ugh why is ipv6 impossible to understand :/
  - chungy 6y ago
    It's not. Think IPv4 but bigger.
  - detaro 6y ago
    Is the notation the problem here? IPs have 16 bytes now, so the notation is a bit more compact: hex instead of decimal numbers, and :: is a shortcut meaning "replace with as many zeros as necessary to fill the address to 16 bytes"
- cranekam 6y ago
  Ugh right you are. I misread the whois output and didn't stop to consider how realistic a /12 was. This is embarrassing.