AS2907 Research Organization of Information and Systems, National Institute of Informatics
18.104.22.168/16 - TEZUKA-UNET
inetnum: 22.214.171.124 - 126.96.36.199 netname: TEZUKA-UNET country: JP descr: Tezukayama University admin-c: KU18-AP tech-c: KU18-AP status: ALLOCATED PORTABLE mnt-by: MAINT-JPNIC mnt-irt: IRT-JPNIC-JP mnt-lower: MAINT-JPNIC last-modified: 2015-12-01T22:24:59Z 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: Kunihiko Uehara address: Tezukayama University country: JP phone: +81-742-45-4701 e-mail: firstname.lastname@example.org nic-hdl: KU18-AP remarks: ---------- remarks: imported from ARIN object: remarks: remarks: poc-handle: KU13-ARIN remarks: is-role: N remarks: last-name: Uehara remarks: first-name: Kunihiko remarks: street: Tezukayama University remarks: country: JP remarks: mailbox: email@example.com remarks: bus-phone: 81-742-45-4701 remarks: reg-date: 1992-12-21 remarks: changed: firstname.lastname@example.org 19921221 remarks: source: ARIN remarks: remarks: ---------- notify: email@example.com mnt-by: MNT-ERX-TEZUKAYAMAUNI-NON-JP last-modified: 2008-09-04T07:29:35Z 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.