Exhibit 4.3 12.25% Indenture SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") dated as of October 12, 2006, among LEVEL 3 COMMUNICATIONS, LLC (the "New Guarantor"), a direct or indirect subsidiary of Level 3 Communications, Inc. (or its...Supplemental Indenture • October 17th, 2006 • Level 3 Communications Inc • Telephone communications (no radiotelephone) • New York
Exhibit 4.1 Floating Rate Indenture SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") dated as of October 12, 2006, among LEVEL 3 COMMUNICATIONS, LLC (the "New Guarantor"), a direct or indirect subsidiary of Level 3 Communications, Inc. (or its...Supplemental Indenture • October 17th, 2006 • Level 3 Communications Inc • Telephone communications (no radiotelephone) • New York
Exhibit 4.4 SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") dated as of October 12, 2006, among LEVEL 3 FINANCING, INC., a Delaware corporation (the "Issuer"), LEVEL 3 COMMUNICATIONS, INC., a Delaware corporation ("Parent"), LEVEL 3...Supplemental Indenture • October 17th, 2006 • Level 3 Communications Inc • Telephone communications (no radiotelephone) • New York
