http://www.sweetliberty.org/standing_calls.htm
According to Article V of the Constitution, Congress must call a convention when 2/3rds of the states apply. That magic number is 34 states. Since three states have formally withdrawn (rescinded) their calls, that would seemingly leave us 5 states away from having a Con-Con. However, we have been informed that the advocates of the convention are waiting to capture not five, but only two more. It is said that if they get two more states to pass resolutions for a Con-Con, they plan to challenge the rescissions of the three states and throw them into the courts while going ahead with a convention.