Twins file number is lower than Obama who was born the day before. According to the proper sequence Obama should've had a lower number,since he was born the day before. Twins file number is lower than Obama who was born the day before. According to the proper sequence Obama should've had a lower number,since he was born the day before.Mostly right, except that the date that matters is the “date filed” since that is when the number was given. Doesn’t really matter when they were born, only when the HDOH got their BC in their office and stamped it with a number - which Janice Okubo says was the “date filed” for Oahu births.