vault.centos.org/6.10/contrib/i386/Packages :
rhnlib-2.5.22-15.el6.noarch.rpm
subscription-manager-1.20.10-8.el6.i686.rpm
subscription-manager-gui-1.20.10-8.el6.i686.rpm
subscription-manager-migration-1.20.10-8.el6.i686.rpm
subscription-manager-migration-data-2.0.43-1.el6.noarch.rpm
subscription-manager-plugin-container-1.20.10-8.el6.i686.rpm
subscription-manager-rhsm-1.20.10-8.el6.i686.rpm
subscription-manager-rhsm-certificates-1.20.10-8.el6.i686.rpm