- Archaeological Park of Ostia Antica: pa-oant@beniculturali.it,
mbac-pa-oant@mailcert.beniculturali.it (certified e-mail) - Decorated Houses reservations: pa-oant.domusostia@beniculturali.it
- Communication Department: pa-oant.comunicazione@beniculturali.it
- Cartography Archive: pa-oant.archiviodisegni@beniculturali.it
- Photo Archive: pa-oant.archiviofotografico@beniculturali.it
- Library: pa-oant.biblioteca@beniculturali.it
- Movable Property Inventory: pa-oant.catalogo@beniculturali.it
- Study Agreements Department: pa-oant.convenzionistudio@beniculturali.it
- Isola Sacra: pa-oant.isolasacra@beniculturali.it
- Museum of Roman Ships (Archaeological Area archeologica of Porto): pa-oant.museodellenavi@beniculturali.it
- Restoration Department: pa-oant.restauro@beniculturali.it
- Education Services: pa-oant.servizieducativi@beniculturali.it
- Technical Office: pa-oant.tecnico@beniculturali.it
- Promotion Department: pa-oant.valorizzazione@beniculturali.it
- Vincoli Office: pa-oant.vincoli@beniculturali.it
