4.2.2.2 is definitely anycast, I've used that one since I think before Google was founded...

On Wed, Feb 9, 2022 at 5:01 PM Mike Lewinski via NANOG <nanog@nanog.org> wrote:

> What else is like that and easy to remember and isn’t 1.1.1.1 ?

4.2.2.1, which IIRC predates both 8.8.8.8 and 1.1.1.1.

Muscle memory still favors it. I think 4.2.2.2 might be anycast the same but never really looked hard at it.