Verizon Business XOXO-BLK-26 (NET-71-4-0-0-1) 71.4.0.0 - 71.5.255.255 Interphase Communications, Inc. XOXO-71-4-186-0 (NET-71-4-186-0-1) 71.4.186.0 - 71.4.186.255