https://www.2-reg.com/wp-content/uploads/2018/06/REGISTER-1-June-2018.pdf

JUNE 2018 2-reg planes registered in Guernsey

http://www.guernseyregistry.com/homepage

Guernsey Business Register: who owns these planes?

http://woodair.net/Jersey_Register/JerseyRegister.htm

The Jersey Register only shows 3 planes

https://www.jerseyfsc.org/registry/documentsearch/

Jersey Business Registry

FAA Registry database

http://registry.faa.gov/aircraftinquiry/nnum_inquiry.aspx