199.174.0.0 - 199.174.255.0 InterServ (NETBLK-TBLK-INTERSERV) 199.174.1.0 Elixir Technologies Corp. (NET-ELIXIR) 199.174.2.0 Newbridge Communications (NET-NEWBRIDGE-C) 199.174.3.0 Heartstream, Inc. (NET-NET-HEARTSTREAM) 199.174.4.0 Cole & Weber (NET-COLEWEBER) 199.174.6.0 UniDos, Inc. (NET-UNIDOS) 199.174.7.0 Dealer Internet Services Corp. (NET-DEALERNET) 199.174.8.0 - 199.174.15.0 Northern Life Insurance Company (NET-NLIC)