I can resolve them on mobile internet and my home wifi. Maybe it's your ISP? Try changing your DNS settings to a known good one.
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Good advice, but zero instruction...
@OP
DNS is like a phonebook of the internet, by default you are using the one you get from your ISP, but you can change it fairly easily.
How you change it depends on what operating system you are using.
There are plenty of guides out there.
1.1.1.1 - This is Cloudflare's DNS server.
1.0.0.1 - This is Cloudflare's secondary DNS server.
8.8.8.8 - This is Google's DNS server.
8.8.4.4 - This is Google's secondary DNS server.
9.9.9.9 - This is Quad9's DNS server.
149.112.112.112 - This is Quad9's secondary DNS server.
208.67.222.222 - This is OpenDNS' DNS server
208.67.220.220 - This is OpenDNS' secondary DNS server.
We've always been at war with Eurasia