Only way to find out is to pull Equifax report(s)..   If you have Score Watcha dn see it flipping between two scores back and forth, that could be a clue.  But, I'm sure once you pull a report you will see if your file has been split.

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My Starting Score: EQ: 691 (11/30/11) TU98: 726 (11/30/11)
My Current Score: EQ: 790 (03/31/13) TU08: 833 (04/03/13)
DW Starting Score: EQ: 742 (03/02/12) TU98: 748 (03/02/12)
DW Current Score: EQ: 784 (03/11/13) TU08: 753 (04/03/13)