Multiple realities
(covers information from several alternate timelines)
NX registry

The NX registry of the USS Defiant

For the class of starship, please see NX class.

NX was a two-letter prefix first used by the United Earth Starfleet for their NX-class starships in the mid-22nd century. (ENT: "Broken Bow", "Fortunate Son"). After the founding of the United Federation of Planets in 2161, this prefix was used for experimental and prototype starship designs. (Star Trek III: The Search for Spock) In the mirror universe, this prefix was used by the Terran Empire for their NX-class starships. (ENT: "In a Mirror, Darkly") Two centuries later, this prefix was used by the Terran Resistance Forces for their Defiant-class starship. (DS9: "Shattered Mirror") Ships that used the NCC and the NX prefix were listed in the Starfleet Registry. (TOS: "The Ultimate Computer")

NX registries Edit

Ship Name Registry Class Dates Reference
none NX-Alpha NX-class prototype 2143 ENT: "First Flight"
none NX-Beta NX-class prototype 2143 ENT: "First Flight"
none NX-Delta NX-class prototype 2144 ENT: "First Flight"
Enterprise NX-01 NX-class 2151-2161 ENT: "Broken Bow"
Columbia NX-02 NX-class 2154 ENT: "The Expanse", ""
unnamed NX-03 NX-class 2151 ENT: "Fortunate Son"
unnamed NX-04 NX-class 2151 ENT: "Fortunate Son"
USS Franklin NX-326 Franklin-type 2160s, 2263 Star Trek Beyond
USS Constellation NX-1974 Constellation-class 2293 Star Trek VI: The Undiscovered Country
USS Excelsior NX-2000 Excelsior-class 2285 Star Trek III: The Search for Spock
USS Bradbury NX-72307 Bradbury-class 2366 TNG: "Ménage à Troi"
USS Defiant NX-74205 Defiant-class 2370-2375 DS9: "The Search, Part I", "The Changing Face of Evil"
USS Defiant NX-74205[1] Defiant-class 2375 DS9: "The Dogs of War"
USS Prometheus NX-59650
Prometheus-class 2374 VOY: "Message in a Bottle"
  1. The USS Sao Paulo had the registry NCC-75633 before it was the USS Defiant.
  2. The hull had the first number, the dedication plaque and internal displays the other

Alternate registries Edit

Ship Name Registry Class Dates Note Reference
USS Yellowstone NX-74751 Yellowstone-class 2372 From an alternate timeline VOY: "Non Sequitur"
USS Dauntless NX-01-A
Dauntless-class 2374 Arturis's disguised vessel VOY: "Hope and Fear"

Mirror universe NX registries Edit

Ship Name Registry Class Dates References
ISS Enterprise NX-01 NX-class 2155 ENT: "In a Mirror, Darkly"
ISS Avenger NX-09 NX-class 2155 ENT: "In a Mirror, Darkly, Part II"
ISS Defiant NX-74205 Defiant-class 2372-2375 DS9: "Shattered Mirror", "The Emperor's New Cloak"

Appendices Edit

Apocrypha Edit

Other NX ships listed in literature include:

External link Edit

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