199.48.0.0 - 199.48.3.0 Arkansas State Hwy and Transportation Dept. (NETBLK-TBLK-AHTD) 199.48.4.0 - 199.48.7.0 Northern Indiana Public Service Company (NETBLK-TBLK-NIPSCO1) 199.48.8.0 - 199.48.12.0 Lincoln, Nebraska (NETBLK-TBLK-STARNET3) 199.48.16.0 - 199.48.31.255 Bridgestone/Firestone, Inc. (NETBLK-TBLK-BFS) 199.48.32.0 - 199.48.47.0 Oregon Health Division (NETBLK-TBLK-OHD-ISS)