Aquarium of the Pacific held them briefly, as I learned today.
To my understanding Aquarium of the Pacific no longer has this species, but only recently lost its last animal. I think there are currently no other aquatic sea kraits on show in the USA. They are also no longer represented in European zoos/aquariums since ± 2017 either. Few other parks in the world keep them, but Japan has possibly the largest amount. Kagoshima City Aquarium has
Laticauda semifasciata. On the phone, they refer to the animal as
Laticauda laticaudata so this is up for discussion. Okinawa World on the island of Okinawa (famous island amongst Zoochatters for the large Churaumi aquarium) also has one species on show,
Laticauda semifasciata. The largest aquatic sea krait collection was until recently Suma Aquarium. Because of rebuilding, the whole collection was shipped away to Amami Kanko Habu Center. This included real sea snakes as well.
Regarding the species what this topic was originally about, the genus Bungarus:
Species of this group are slightly more represented in captivity because they have less requirements than the aquatic counterpart. In both America and Europe a handful of parks have these beautiful snakes. I could find this video online when looking into it:
Malayan Krait ( Bungarus candidus)... - Kentucky Reptile Zoo | By Kentucky Reptile Zoo | Malayan Krait ( Bungarus candidus) four individuals
Apparently Kentucky Reptile Zoo has three different banded kraits in the collection: multicinctus, fasciatus & candidus.
The species is fairly often visible in zoos in mainland Asia, like Thailand and China.