inet6num: 2001,16b0,,/32 netname: PL-NETIA-20031223 country: PL org: ORG-NTS2-RIPE admin-c: NT1264-RIPE tech-c: NT1264-RIPE status: ALLOCATED-BY-RIR notify: email@example.com mnt-by: RIPE-NCC-HM-MNT mnt-by: NETIA-MNT mnt-lower: AS12741-MNT mnt-lower: NETIA-MNT mnt-lower: AS12968-MNT mnt-routes: AS12741-MNT mnt-routes: AS12968-MNT created: 2003-12-23T16,17,35Z last-modified: 2016-09-15T16,22,32Z source: RIPE organisation: ORG-NTS2-RIPE org-name: Netia SA org-type: LIR address: ul. Poleczki 13 address: 02-822 address: Warszawa address: POLAND phone: +48801802803 fax-no: +48223522223 e-mail: firstname.lastname@example.org admin-c: NT1264-RIPE admin-c: MO3780-RIPE admin-c: KP2343-RIPE admin-c: RPOZ-RIPE admin-c: MM18723-RIPE tech-c: MO3780-RIPE tech-c: RPOZ-RIPE abuse-c: NT1264-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: NETIA-MNT abuse-mailbox: email@example.com mnt-by: RIPE-NCC-HM-MNT mnt-by: NETIA-MNT created: 2004-04-17T11,47,40Z last-modified: 2016-05-24T08,43,24Z source: RIPE role: Netia Telekom S.A. Contact Role address: Poleczki 13 address: 02-822 Warszawa address: Poland phone: +48(22)352 0000 fax-no: +48(22)352 2213 e-mail: firstname.lastname@example.org remarks: trouble, 24/7 phone number, +48(22)352 2233 admin-c: MO3780-RIPE tech-c: KP2343-RIPE tech-c: AK3224-RIPE tech-c: RPOZ-RIPE tech-c: MM18723-RIPE nic-hdl: NT1264-RIPE remarks: --------------------------------------- remarks: In case of abuse from our address range remarks: please contact email@example.com remarks: --------------------------------------- abuse-mailbox: firstname.lastname@example.org notify: email@example.com mnt-by: NETIA-MNT created: 2002-09-05T10,14,26Z last-modified: 2016-08-01T12,28,57Z source: RIPE route6: 2001,16b0,,/32 descr: NETIA descr: Netia SA descr: Poleczki 13 descr: 02-822 Warszawa descr: Poland origin: AS12741 mnt-by: NETIA-MNT created: 2014-10-29T08,04,14Z last-modified: 2014-10-29T08,04,14Z source: RIPE route6: 2001,16b0,,/32 descr: Netia SA descr: Poleczki 13 descr: 02-822 Warszawa descr: Poland origin: AS12968 mnt-by: NETIA-MNT created: 2008-02-20T09,16,29Z last-modified: 2012-11-22T20,05,36Z source: RIPE
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.