192.28.0.0 - 192.28.99.255 3M Company (NETBLK-MM-MN) 192.28.100.0 - 192.28.109.0 Ford Motor Company (NETBLK-D-SUBNETS) 192.28.110.0 - 192.28.139.0 Lockheed Martin Western Development Labs (NETBLK-LORAL-WDL1) 192.28.140.0 - 192.28.255.0 Ford Motor Company (NETBLK--SUBNETS1)