Sub Worksheet_Change(ByVal Target As Range)
Dim MaCel As Range
If Not Intersect(Target, Range("B:B")) Is Nothing Then
For Each MaCel In Target
If Len(MaCel) = 11 Then MaCel = Left(MaCel, 2) & " " & Mid(MaCel, 3, 3) & " " & Mid(MaCel, 6, 3) & " " & Mid(MaCel, 9, 3)
Next
End If
End Sub