198.20.8.0 - 198.20.15.255 Information Systems Management Corporation (NETBLK-ISMC) 198.20.10.0 - 198.20.10.255 SIS (NETBLK-ISMC-3) 198.20.11.0 - 198.20.11.255 SIS (NETBLK-ISMC-2) 198.20.13.0 - 198.20.13.255 SIS (NETBLK-ISMC-1) 198.20.16.0 - 198.20.31.0 Global Marine, Inc. (NETBLK-TBLK-GLOMAR) 198.20.32.0 - 198.20.63.0 University Hospital (NETBLK-TBLK-UHNET)