This netblock was owned by PSINet, one of the first and early ISPs.
PSINet was purchased by Cogent many years ago, and thus Cogent became
the owner of the netblock (188.8.131.52/16). At some point IANA, or ARIN,
or AfriNIC, or all of the above decided that the supernet to which
184.108.40.206/16 belongs, 220.127.116.11/8, was allocated to Africa. You can
see that switch here:
Now just because IANA decides to reallocate a /8 doesn't mean everyone
in that /8 loses their IP space. That would be disastrous to all
involved, obviously. So Cogent maintains ownership of 18.104.22.168/16,
while IP space around them is allocated to African providers. Unless
Cogent decides to return 22.214.171.124/16, it will also be so.
So why does 126.96.36.199/8, and 188.8.131.52/16, show up in Mauritius?
This is because the address of AfriNIC is in Mauritius:
OrgName: African Network Information Center
Address: Level 11ABC
Address: Raffles Tower
Address: Lot 19, Cybercity
This is the default setting for all IP space allocated to AfriNIC
(Africa). It remains the setting until the IP space is allocated to an
African provider, at which point the whois is updated to reflect the
provider's address. Since 184.108.40.206/16 isn't and won't be allocated to
an African provider, the address remains the address of AfriNIC.