# NX

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*For the starship class used by Starfleet in the 22nd century, see NX class.*

**NX** was a prefix for Federation starship registry numbers since its inception in the late 22nd century, derived from the NCC prefix of the Federation Starfleet.

"NX" stood for "**N**aval e**X**perimental", and could refer to any vessel that contained entirely new technologies and/or design concepts – such as the four-nacelle USS *Constellation* – or merely the first starship of a particular class – such as the new-design USS *Excelsior* – before it was approved for class production.

It was not applied to all ships that were the first member of their class, especially if it is known that the class would be put into serial production immediately. ^{[citation needed]}

## NX registriesEdit

- NX-Alpha
- NX-Beta
- NX-Delta
- NX-01
- NX-01-A
- NX-02
- NX-0002
- NX-03
- NX-04
- NX-05
- NX-06
- NX-07
- NX-09
- NX-16
- NX-129
- NX-1974
- NX-2000
- NX-74205
- NX-91001
- NX-91211
- NX-95560
- NX-96100

## External linkEdit

- NX article at
, the wiki for canon**Memory Alpha***Star Trek*.