Exhibit 10.4 SHELF REGISTRATION AGREEMENT AGREEMENT dated as of November 12, 2002 among Commonwealth Telephone Enterprises, Inc., a Pennsylvania corporation (the "Company"), Level 3 Communications, Inc., a Delaware corporation ("Level 3") and Eldorado...Shelf Registration Agreement • November 13th, 2002 • Level 3 Delaware Holdings Inc • Telephone communications (no radiotelephone) • New York
