| MCI.COM | CSC Corporate Domains, Inc. | auth-ns1.verizonbusiness.com auth-ns2.verizonbusiness.com auth01.ns.uu.net auth200.ns.uu.net auth210.ns.uu.net auth50.ns.uu.net auth61.ns.uu.net | 11.12.1991 | 10.12.2025 |
| UUNET.COM | MarkMonitor Inc. | auth-ns1.verizonbusiness.com auth-ns2.verizonbusiness.com auth01.ns.uu.net auth50.ns.uu.net auth61.ns.uu.net | 14.12.1993 | 13.12.2021 |
| WCOM.COM | MarkMonitor Inc. | auth-ns1.verizonbusiness.com auth-ns2.verizonbusiness.com | 22.06.1995 | 21.06.2022 |
| VZB.COM | CSC Corporate Domains, Inc. | auth-ns1.verizonbusiness.com auth-ns2.verizonbusiness.com | 04.11.1999 | 04.11.2025 |
| VERIZONBUSINESS.COM | MarkMonitor Inc. | auth-ns1.verizonbusiness.com auth-ns2.verizonbusiness.com auth01.ns.uu.net auth200.ns.uu.net auth210.ns.uu.net auth50.ns.uu.net auth61.ns.uu.net | 29.09.2003 | 29.09.2021 |