> This comment on the mozilla.dev.security.policy mailing list says that right now it's only for users in the nation's capital
I'm from capital (Nur-Sultan, former Astana).
I just checked my wife's phone and apparently she got SMS. Funnily enough, her cellular internet now does not work at all. Probably rollout is not going easy.
> At the moment, providers started to use the certificate in the capital of Kazakhstan - Nur-Sultan (ex. Astana).
So it may not be nationwide yet.