Exhibit 10.48 ASSIGNMENT OF DSL LINES AND MUTUAL RELEASE This agreement ("Agreement") is entered into as of March 16, 2001 (the "Effective Date") between Rhythms Links Inc., a Delaware corporation, and Rhythms NetConnections Inc., a Delaware...Assignment of DSL Lines and Mutual Release • April 2nd, 2001 • Rhythms Net Connections Inc • Services-computer programming, data processing, etc. • California
