It is the American Bar Association. They call me all the time. I've twice told them I am not interested in a free membership, even one that will cancel automatically if I do nothing, yet still they persist. Very annoying. They couldn't pay me to join.
Called my work # twice in 2 days. Caller ID says "Bar Association" - have haven't been a member of the ABA for 12 years and have changed jobs 3 times since then, so no idea how they have my number.