AS2907 Research Organization of Information and Systems, National Institute of Informatics
188.8.131.52/17 - GRID-NET
inetnum: 184.108.40.206 - 220.127.116.11 netname: GRID-NET descr: National Institute of Advanced Industrial Science and Technology country: JP admin-c: YS419-AP tech-c: YS419-AP status: ALLOCATED PORTABLE notify: email@example.com mnt-by: MAINT-JPNIC mnt-lower: MAINT-JPNIC mnt-irt: IRT-JPNIC-JP last-modified: 2017-11-09T04:54:41Z source: APNIC irt: IRT-JPNIC-JP address: Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda address: Chiyoda-ku, Tokyo 101-0047, Japan e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com admin-c: JNIC1-AP tech-c: JNIC1-AP auth: # Filtered mnt-by: MAINT-JPNIC last-modified: 2017-10-18T10:21:54Z source: APNIC person: Yasuo Sugawara address: Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 country: JP phone: +81-298-61-5893 e-mail: firstname.lastname@example.org nic-hdl: YS419-AP remarks: ---------- remarks: imported from ARIN object: remarks: remarks: poc-handle: YSU-ARIN remarks: is-role: N remarks: last-name: Sugawara remarks: first-name: Yasuo remarks: street: Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 remarks: country: JP remarks: mailbox: email@example.com remarks: bus-phone: +81-298-61-5893 remarks: reg-date: 2002-11-07 remarks: changed: firstname.lastname@example.org 20021107 remarks: source: ARIN remarks: remarks: ---------- notify: email@example.com mnt-by: MNT-ERX-RWCPRLWLDCOMPT-NON-JP last-modified: 2008-09-04T07:29:33Z source: APNIC
IP address subranges within this IP range
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.