Ada domain names: who holds what, and for which purpose?

[Heziode <heziode@protonmail.com>]

By curiosity, I have checked if there is some domain name related to Ada 
language.
I mean, domains that can be officialy used to represent the language 
(even though according to Wikipedia, it is adaic.org. Keep in mind, I am 
doing this out of curiosity).

I was being surprised to discover that several domains, that could be 
used as an "official" website (like *lang.org, *-lang.org, *.codes, 
where "*" is the language name), is bought but not used, and not in sales.

Here is a table of my few research:

| Domain       | Owner        | Registered On | Country | State   | Note 
                                               |
|--------------|--------------|---------------|---------|---------|----------------------------------------------------|
| ada-lang.com | AdaCore      | 2016-09-20    | FR      |         | 
Point on "thinkx.net", so DNS issue with wrong IP? |
| adalang.com  | ?            | 2014-03-30    | US      | Florida | 
                                               |
| ada-lang.org | ?            | 2020-02-11    | US      | WA      | 
                                               |
| adalang.org  | ?            | 2020-02-12    | US      | WA      | 
                                               |
| ada.codes    | Steve Arnold | 2014-04-23    | US      | CA      | 
                                               |

We can see that "ada-lang.org" and "adalang.org" seems to be bought by 
the same person/entity, but these domains are not used, and not in 
sales. Looks like domain retention.

Does anyone know who is behind these domains ?

Heziode