Dear Susanna,  The numbers 915 and 1111 I know personally what they mean:

1111 has 2 meanings: 
   The First is 1111, Ladder to Heaven.  It is Jacob's Ladder for those who are born again, who are waiting for the glorious appearing of our Lord Jesus Christ.  It means that you are staying on the narrow path, and that you are in the Lord's will.  You are not looking to the right or to the left, but to the top of the stairs, to the doorway leading into the next world. 
  The Second is 1111, Ladder to Hell.  It is the gateway to hell for those watching for the appearing of the antichrist, the maitreya or world savior who will lead the world to peace.  They are awaiting his golden pyramid from the belt of Orion, the City of Crystals and Rainbows to descend.   These New Agers have been having out of body experiences to this place much like our friends Joy Hetrick and others who are going to Heaven.  

915 Meaning to Me:
   My mother had a vision of this number and it meant the job she was supposed to do until the day of the rapture.   When I see 915 I ask myself, what is my role in the body of Christ as we are living in the biggest harvest in history.   The Lord has a task for you to do and it could be a number of things.   It could be painting your house and then on your breaks you study the word and share it with your church.    Who knows what that is?   But the Lord will help you to occupy until He comes.   He wants you to stay motivated.