Follow the white rabbit.

11-9bd-23

23 Owenvarragh Park, Belfast, BT11 9BD

>> https://www.ukpostcodecheck.com/address/40dbb691/23-owenvarragh-park_belfast_bt11-9bd

>> https://www.google.com/maps/place/24+Owenvarragh+Park,+Belfast+BT11+9BD,+UK/

>>16474360

Correction

>> https://www.google.com/maps/place/23+Owenvarragh+Park,+Belfast+BT11+9BD,+UK/

>>16474440

Just random decode of 11-9bd-23 which happens to be an address that happens to have a white rabbit in front.

Included next post for context