AS23951 PT JEMBATAN CITRA NUSANTARA
2401:ee00::/32 - IPv6-CITRANET
inet6num: 2401:ee00::/32 netname: IPv6-CITRANET descr: PT Jembatan Citra Nusantara descr: Internet Service Provider descr: Jalan Ampel 10 Papringan descr: Yogyakarta 55281 country: ID admin-c: XX490-AP tech-c: XX490-AP status: ALLOCATED PORTABLE remarks: spam and abuse report : firstname.lastname@example.org remarks: technical and routing : email@example.com remarks: hostmasters : firstname.lastname@example.org mnt-by: MNT-APJII-ID mnt-lower: MAINT-ID-CITRANET mnt-routes: MAINT-ID-CITRANET last-modified: 2010-04-29T04:00:43Z source: APNIC role: CITRANET HOSTMASTER address: PT Jembatan Citra Nusantara address: Jl Petung 31 Papringan address: Yogyakarta 55281 country: ID phone: +62-274-554444 fax-no: +62-274-553055 e-mail: email@example.com abuse-mailbox: firstname.lastname@example.org admin-c: VR1-AP admin-c: RT305-AP tech-c: IF39-AP nic-hdl: XX490-AP remarks: CITRANET HOSTMASTER role object notify: email@example.com mnt-by: MAINT-ID-CITRANET last-modified: 2010-08-26T02:31:01Z source: APNIC
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.