(https://i.imgur.com/2n8Ygk6.png)
There's also, for instance, AFRINIC at http://www.afrinic.net/ whois.afrinic.net
There are exactly 5 NICs actually, we are missing AFRINIC it seems.
https://en.wikipedia.org/wiki/Regional_Internet_registry
Afrinic was removed on purpose a while back (for 2.0 & 2.1).
They stopped replying to queries, and never published a new public link/api.
It appeared at the time they ceased offering that service.
https://github.com/SimpleMachines/SMF/issues/5366
That was early 2019. Apparently a site/service rearchitecture.
It looks like they started offering via a new service late 2020: https://afrinic.net/whois/rdap
It may be possible to resurrect this.
https://github.com/SimpleMachines/SMF/issues/7619