If you ordered checks for your account, you can find the routing and account numbers along the bottom left side of the check. The Merrill routing number is the first nine digits (084301767) and the account number is the second nine digits. The last four numbers indicate the check number. If you have not ordered checks for your account, you still have a checking account number assigned to your CMA account. Once your account is opened you can call our Investment Center at 877.653.4732 to retrieve your account number.