List of best mirrors for IP address 3.147.51.72, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/multiarch/pool/main/l/llvm-toolchain-11/llvm-toolchain-11_11.0.1-2+rpi1.debian.tar.xz