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You can get extended WHOIS from tucows direct/extended (the host listed as registrar in base whois)

https://www.tucowsdomains.com/whois-result/

Can't link direct because of their shitty form interface (what is this, 1998?), but you can put the domain there.

I also get it from a direct whois request, but different tools may vary.

Anyway, the relevant portion in the extended is:

>  Registration Service Provider:
>     N.T.Technology inc., domains@nttec.com
>     1-425-259-3201
>     http://www.nttec.com
>     This company may be contacted >for domain login/passwords,
>     DNS/Nameserver changes, and >general domain support questions.

N.T. Technology is Jim Watkin's company