Yes, your account number will stay the same. However, the format of your account number will change. Your account number will change from xxx-xxxxx.xx (3 numbers, dash, 5 numbers, period, 2 numbers) to xxxxxxxx-xxx (8 numbers, dash, 3 numbers). It will go from a 10-digit number to an 11-digit number. The account sequence number, the number at the end, will change from 2-digits to 3-digits and will have an extra 0 in it. For example, 123-45678.02 will change to 12345678-002.