# Are the Groups having all subgroups of same order conjugate classified?

As we know, Alternating Groups $A_n$ of degree $n\leq 5$, Dihedral Groups $D_{2n}$ of order $2n$ (for odd natural number $n$) and Cyclic Groups $C_n$ of order $n$ (for positive integer $n$) have subgroups of same order conjugate. Are such (finite) groups classified? Is there some more groups of this type?

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Why single out the cyclic groups of prime order? It holds for any finite cyclic group. –  Tobias Kildetoft Sep 4 '13 at 7:32
Oops. I just missed it. It is true for all positive integer $n$. Thanks @TobiasKildetoft. –  Laxmi kant Mishra Sep 4 '13 at 7:36