HXA -- (Followed by number) Collect landline delivery authorized by addressee within....miles. (If no number, authorization is unlimited.)
HXB -- (Followed by number) Cancel message if not delivered within....hours of filing time; service originating station.
HXC -- Report date and time of delivery (TOD) to originating station.
HXD -- Report to originating station the identity of station from which received, plus date and time. Report identity of station to which relayed, plus date and time, or if delivered report date, time and method of delivery.
HXE -- Delivering station get reply from addresses, originate message back.
HXF -- (Followed by number) Hold delivery until....(date).
HXG -- Delivery by mail or landline toll call not required. If toll or other expense involved, cancel message and service originating station.