1.1.1.1 down

1.1.1.1 website and dns service apparently are down.

Not working from one of the most biggest isp of Chile ISP Entel Chile (FTTH And mobile 4G)

I think the issue is that the ISP is hijacking the IPs that are not theirs.

Try using 1.0.0.1 and tell what it says here Cloudflare-dns.com/help