List of best mirrors for IP address 3.145.152.168, 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-7/llvm-7-runtime_7.0.1-8+rpi3+deb10u2_arm64.deb