Identified UNSC Vessels and Stations

Carriers
UNSC All Under Heaven
UNSC Atlas
UNSC Magellan
UNSC Musashi - Destroyed
UNSC Stalingrad - Destroyed
UNSC Trafalgar - Supercarrier, Destroyed

Cruisers
UNSC Basra - Destroyed
UNSC Dawn Under Heaven - Halcyon-class , Unknown
UNSC Hannibal - Destroyed
UNSC Leviathan - Marathon-class - unknown, presumably in active service
UNSC Pillar of Autumn - Halcyon-class , Destroyed

Destroyers
UNSC Brasidas - Destroyed
UNSC Iroquois -Unknown, probably destroyed
UNSC Glasgow Kiss - Destroyed
UNSC Heracles - Destroyed
UNSC Herodotus - Destroyed
UNSC Iwo Jima - Destroyed
UNSC Lancelot - Destroyed
UNSC Minotaur - Destroyed
UNSC Pioneer
UNSC Resolute
UNSC Tharsis - Destroyed

Frigates
UNSC Adriatic - in active service
UNSC Aegis Fate - in active service
UNSC Alliance - Destroyed
UNSC Allegiance - Destroyed
UNSC Arabia - Destroyed
UNSC Commonwealth - Unknown
UNSC Euphrates - Unknown, possibly destroyed
UNSC Fair Weather - Destroyed
UNSC Forward Unto Dawn - Destroyed, rear section lost in space
UNSC Gettysburg - Unknown, flown back to Earth
UNSC Gorgon
UNSC In Amber Clad - Destroyed, or at least consumed by the Flood when they overtook High Charity.
UNSC Meriwether Lewis - Destroyed
UNSC Midsummer Night
UNSC Paris- Unknown, probably Destroyed
UNSC Redoubtable- Unknown, probably Destroyed
UNSC Tannenberg
UNSC Vostok - Destroyed

Prowlers
UNSC Apocalypso - Destroyed
UNSC Applebee
UNSC Athens
UNSC Circumference - Destroyed
UNSC Dusk
UNSC Lark
UNSC Point of No Return
UNSC Razor's Edge

Corvettes
UNSC Chalons
UNSC Coral Sea- Unknown
UNSC Pony Express
UNSC Two for Flinching
UNSC Bunker Hill
UNSC Bum Rush
Colony Ships
UNSC Spirit of Fire - Modified Phoenix-class Colony Ship
UNSC Skidbladnir - Phoenix-class Colony Ship, scrapped
Odyssey - Colony Ship
Other Ships
UNSC Agincourt - Supply ship, Destroyed
UNSC Argo - Scout Ship, Destroyed
UNSC Walk of Shame - ONI sloop
Beatrice - Chiroptera-class , Destroyed
Coda - Shuttle Pod, Destroyed
Han - Diplomatic Shuttle
Hermes II
UNSC Laden - Parabola-class
UNSC Onan - Cargo Freighter
UNSC Point of No Return - Stealth Destroyer, UNSC wartime command center
UNSC Witch Bucket
Stations

Orbital Defense Platforms
Cairo Station
Athens Station - Destroyed
Malta Station - Destroyed
Nassau Station (Fell through temporal anomaly, orbiting Earth in 2004)

Mobile Stations
UNSC Cradle - Refit/Repair Facility, Destroyed
Station Delphi - Shipyard, Decommissioned
UNSC Hopeful - Hospital Ship



Remote Scanning Outposts
Fermion - Destroyed
Democritus
Archimedes
Tripoli

Medical Stations
ONI Medical Facility
M25L Recovery Station