Exhibit 4.1 LEVEL 3 FINANCING, INC. 12.25% Senior Notes due 2013 REGISTRATION AGREEMENTRegistration Agreement • April 6th, 2006 • Level 3 Communications Inc • Telephone communications (no radiotelephone) • New York
Contract Type FiledApril 6th, 2006 Company Industry Jurisdiction
WITNESSETHRegistration Agreement • November 14th, 2003 • Us Dataworks Inc • Services-prepackaged software • Nevada
Contract Type FiledNovember 14th, 2003 Company Industry Jurisdiction
REGISTRATION AGREEMENTRegistration Agreement • January 16th, 2002 • Tech Data Corp • Wholesale-computers & peripheral equipment & software • New York
Contract Type FiledJanuary 16th, 2002 Company Industry Jurisdiction
130,000,000 6% Convertible Subordinated Notes due 2008Registration Agreement • August 29th, 2001 • School Specialty Inc • Wholesale-paper & paper products • New York
Contract Type FiledAugust 29th, 2001 Company Industry Jurisdiction
PX ESCROW CORP. 9 5/8% Senior Subordinated Discount Notes Due 2006 To Be Assumed By PANAVISION INC. REGISTRATION AGREEMENTRegistration Agreement • July 17th, 1998 • Panavision Inc • Photographic equipment & supplies • New York
Contract Type FiledJuly 17th, 1998 Company Industry Jurisdiction