inetnum: 18.104.22.168 - 22.214.171.124 netname: NO-NHN-20110309 country: NO org: ORG-NHA3-RIPE admin-c: OWA2-RIPE admin-c: LR2413-RIPE tech-c: OWA2-RIPE tech-c: LR2413-RIPE status: ALLOCATED PA notify: email@example.com mnt-by: RIPE-NCC-HM-MNT mnt-by: MNT-NHN mnt-lower: MNT-NHN mnt-routes: MNT-NHN mnt-routes: AS2119-MNT mnt-irt: IRT-NHN created: 2011-03-09T13,20,53Z last-modified: 2016-09-02T12,03,46Z source: RIPE organisation: ORG-NHA3-RIPE org-name: Norsk Helsenett SF org-type: LIR address: Postboks 6123 address: 7435 address: TRONDHEIM address: NORWAY phone: +4773565756 fax-no: +4773931480 e-mail: firstname.lastname@example.org admin-c: RUBO-RIPE admin-c: EHN3-RIPE admin-c: OWA2-RIPE admin-c: LR2413-RIPE abuse-c: NHN-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: MNT-NHN mnt-by: RIPE-NCC-HM-MNT mnt-by: MNT-NHN created: 2006-08-04T05,11,05Z last-modified: 2016-09-02T12,04,01Z source: RIPE person: Lasse Rygg address: Evjenvegen 48 address: postboks 6448 address: N-9294 Tromso phone: +47 7356 5844 nic-hdl: LR2413-RIPE mnt-by: MNT-NHN created: 2006-10-11T09,15,59Z last-modified: 2011-03-11T19,16,33Z source: RIPE person: Orjan Wasmuth address: Nedre Markveg 29 address: N-9011 address: Tromso address: Norway phone: +4793039517 nic-hdl: OWA2-RIPE mnt-by: MNT-NHN created: 2006-08-14T13,50,12Z last-modified: 2011-03-11T19,13,52Z source: RIPE route: 126.96.36.199/21 descr: Norsk Helsenett A/S origin: AS56828 mnt-by: MNT-NHN created: 2013-08-21T10,46,11Z last-modified: 2013-08-21T10,46,11Z source: RIPE
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.