K.P.
Every child is different, but my son was definitely sleeping through the night by then. Have you started any solids yet? You may want to try some cereals or veggies during evening meals to make sure his little belly is full before going to sleep.
A friend of mine would go in when her daughter woke up and rub her back until she calmed-down b/c the doctor suggested that the baby wasn't hungry, but looking for consoling. After a couple of weeks, the midnight wake-up went away all together.
You say no, CIO but keep in mind that it does work! It's really tough to do and feels like you are a horrible person, but after two long nights and one short one, my son was sleeping through the night with very few (if any) exceptions. Read the literature on it b/c it's not what most people think!