Any 401K plan questions are to be directed to the company or corporation that introduced the plan to you. If your employer had an agent talk to you about opening a 401K, you need to talk to that agent's company. It is the only way you will learn of the plan. When you say "old", the impression is you left without notifying that 401K company. The company can not hold that money longer than sixty days. They are bound by law to put it in a bank account for you. It is hoped this information sets you on the right path.