Differences between 1.1.1.1 and 172.64.36.1?

Hello good day!!!
I wanted to ask the Cloudflare support people what differences there are between these two ip’s.
My question comes from the side that 1.1.1.1 continues to resolve some domains in a SUB OPTIMA way for not having ECS enabled … And I am seeing that 172.64.36.1 OPTIMA solves all domains, even domains that 1.1.1.1 does not resolve. .

Do you have 172.64.36.1 ecs enabled ???

Greetings and thanks!!!

Nobody support around here??? @irtefa???

Good evening… stop by to see if they answered…
I understand… Cloudflare must have all of its employees quarantined…

I, too, am looking for the answer to this, @irtefa do you have any info?