Hard drive in one of my TiVos died. Can I move my existing CableCARD to a new TiVo?

The hard drive in one of my TiVos died. Its CableCARD still works. I know that new cards are no longer issued. I plan to get a new TiVo. Can I simply buy it and have the existing card re-paired to the new TiVo? Which number would I call?