198.21.8.0 - 198.21.15.0 Pocono Medical Center (NETBLK-TBLK-POCONO) 198.21.16.0 - 198.21.31.0 Syntex USA Inc. (NETBLK-BLK-SYNTEXW) 198.21.32.0 - 198.21.81.0 Central Intelligence Agency (NETBLK-TBLK-CIA9)