List of best mirrors for IP address 3.142.174.100, 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/liba/libatomicbitvector/libatomicbitvector-dev_0.0+git20200519.e295358-3_all.deb