I would imagine it would have some minor effect since you are loosing one of your accounts but not much. It might make the AAoA go up a bit since you have fewer accounts to average out. Keeping the same c/l should keep you from getting dinged too much since your utilization and available credit wont change. Usually when you combine two accounts they just list the one account as closed by consumer on your credit report so while you are loosing an account you will still have the same credit available you did have.
