Feeder Operator
A Feeder Operator runs short-sea shipping services that connect smaller regional ports to the major hub ports where deep-sea container vessels call. The economic logic: a 24,000-TEU mega-vessel cannot economically call at small ports, so cargo is consolidated at major hubs (Singapore, Rotterdam, Jebel Ali) and "fed" by smaller feeder vessels to/from regional ports.
Feeder operators may own their own vessels or charter them; they hold "slot" agreements with deep-sea principals for the feeder leg. Operationally, feeder lines manage slot allocations from deep-sea principals, intra-regional sailing schedules, container booking, manifesting, port-to-port coordination, EDI reconciliation, and revenue accounting per slot.