List of best mirrors for IP address 3.144.8.68, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/l/llvm-toolchain-16/libomp-16-dev_16.0.6-27+rpi1+b1_armhf.deb