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Solutions of the undeformed IKKT matrix model with structure R^{3,1} x K arepresented, where the noncommutativity relates the compact with the non-compactspace. The extra dimensions are stabilized by angular momentum, and the scalesof K are generic moduli of the solutions. Explicit solutions are given for K=T^2, K= T^4, K = S^2 x T^2 and K = S^2 x S^2. Infinite towers of Kaluza-Kleinmodes may arise in some directions, along with an effective UV cutoff on thenon-compact space. Deformations of these solutions carry NC gauge theorycoupled to (emergent) gravity. Analogous solutions of the BFSS model are alsogiven.

Split noncommutativity and compactified brane solutions in matrix models