In a large bowl, add the cream cheese, mayo, sour cream, garlic powder, onion salt, buffalo sauce, 3/4 of the crumbled bacon, the white parts of the green onion, and pepper to taste. Mix until smooth and well combined.
Gently fold in the crabmeat until evenly incorporated.
Spoon the mixture into a cast iron skillet, pie dish, or baking dish of your choice. Sprinkle the shredded colby jack cheese over the top, followed by the remaining bacon crumbles.
Bake for 25 to 30 minutes, or until hot and bubbling and the cheese is melted and lightly golden.
Remove from the oven and sprinkle with the remaining green onion tops. Serve warm with crackers, toasted baguette slices, or garlic knots.
