-While playing "Risk", Sawyer rolls a 15.
-The warning code for the fence was 1623.
-When Keamy is counting down from 10, he stops at 8.
-Ben says he is going to see Mr. and Mrs. Kendrick in 4E.
-When Locke picks up the phone in Ben's house,the code that he listen that warns them of Keamy's arrival at the barracks is 14J. J is the 9th letter of the alphabet so 14+9=23.