https://www.syfy.com/syfywire/blast-off-on-a-bug-hunt-inside-aliens-uss-sulacoA graphic (I'm assuming it's a fan created thing) in the article lists a registry number as 513792.
No idea if it would be listed as CV-513792 (Aircraft Carrier) or CVL-513792 (Aircraft Carrier, Light).
Those are US Navy designations.
CVL designation hasn't been usedin a long while I believe.
Alternately, the light Carriers also had designations like CVH (Carrier, Helicopter), so a designation like
CVD (Carrier, Dropship) might be accurate.
Some more Aircraft Carrier naming info...
http://www.navweaps.com/index_tech/index_ships_list.php
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