List of best mirrors for IP address 18.227.111.193, 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/d/dart/libdart-external-convhull-3d-dev_6.12.1+dfsg4-13+b1_armhf.deb