This read-only Counter32 holds the high-order 32 bits of a 64-bit conforming-bytes counter for the subscriber, used together with oaSubscrAccNmLowConformingBytes to reconstruct the full byte count on platforms without native 64-bit counter support. Admins combine the high and low parts when the conforming-byte total exceeds what a single Counter32 can represent. For example, a management station would read both this object and its low-part counterpart and combine them arithmetically to get the true conforming byte total for a high-traffic subscriber.