www and ftp and smtp and imap of web host (example.com) all unable to load in all apps and tracert. ISP says example.com blocked my IP address. Example.com says my ISP blocked access to all example.com servers.

Today, www.example.com loads (only on laptop browser but not phone), but all the others still give server errors.

I'm trying to determine who is doing the blocking, ISP or example.com, so my question is which one of them is capable of UNblocking www.example.com while still denying access to ftp, smtp, and imap?