– 4 years since Locke's accident. (4)
– Lenny plays Connect Four. (4)
– Sam Toomy has been dead for 4 years. (4)
– Claire was 8 months pregnant when the plane crashed. (8 )
– 8 years since Michael's accident. (8 )
– Shannon was 8 when her father married Boone's mother. (8 )
– 8 people died in fire in Hurley's sneaker factory. (8 )
– August 15, 1989 (8/15) (Kate's time capsule) (8 15)
– The plane was flight 815. (8 15)
– Charlie tried to sell copier C815. (8 15)
– Kate's toy airplane was in safe deposit box 815. (8 15)
– Shannon's father died at 8:15 (15)
–The flight from Sydney to LA was supposed to be 15 hours (15)
– Sun was supposed to leave the airport at 11:15. (15)
– Sam Toomy heard the numbers 16 years ago. (16)
– 16 weeks without a lotto winner before Hurley won. (16)
– Danielle has spent 16 years on the island. (16)
– 16 years since Kate buried the time capsule. (16)
– 16 years since Theresa died. (16)
–Jack's first solo procedure was on a 16-year-old girl (16)
– Michael woke up at 5:23 in Sydney. (23)
– Gate 23. (4 8 15 16 23 42)
– $23,000 reward for turning Kate in. (23 )
– Jack was in seat 23B on the plane. (23)
– Boone was 23 when he died. (23) --assuming he was 21 when he gave Shannon alcohol at her father's funeral
– Anna Lucia was in seat 42F. (42)