List of best mirrors for IP address 3.144.6.223, 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/a/at-spi2-core/libatk-bridge-2.0-0-udeb_2.54.0-1_armhf.udeb