Library /sys$common/syshlp/nclhelp.hlb show, x25_protocol, group, Counters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 o  creation time

    Time at which this entity was created.

 o  incoming calls blocked

    Number of times that an incoming call to a bilateral CUG has been
    blocked by security from accessing a filter.

 o  outgoing calls blocked

    Number of times that a call has been blocked by security from
    accessing this bilateral CUG.