Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a message that indicates a plurality of subsets within a set of random access occasions. Each subset of the plurality of subsets may be associated with a corresponding beam of a plurality of beams, and each corresponding beam may be different from remaining beams of the plurality of beams. Accordingly, the UE may transmit, to the base station and based at least in part on the message, at least one random access preamble. The at least one random access preamble is transmitted within one or more subsets, of the plurality of subsets, using one or more corresponding beams of the plurality of beams. Numerous other aspects are described.