Exhibit 10.1] REGISTRATION RIGHTS AND TRANSFER RESTRICTION AGREEMENT This AGREEMENT (this "Agreement"), dated as of May 31, 2006, among Level 3 Communications, Inc., a Delaware corporation ("Company"), MCCC ICG Holdings LLC, a Delaware limited...Registration Rights and Transfer Restriction Agreement • June 1st, 2006 • Level 3 Communications Inc • Telephone communications (no radiotelephone) • New York
