inetnum: 18.104.22.168 - 22.214.171.124 netname: UK-GFIHOLDINGS-20071029 country: GB org: ORG-GHL1-RIPE admin-c: BPN9-RIPE tech-c: BPN9-RIPE status: ALLOCATED PA mnt-by: RIPE-NCC-HM-MNT mnt-by: GFINET-mnt mnt-routes: GFINET-mnt notify: email@example.com created: 2007-10-29T14,25,02Z last-modified: 2017-06-09T07,44,02Z source: RIPE organisation: ORG-GHL1-RIPE org-name: GFI Holdings Limited org-type: LIR address: SNOWDEN STREET 1 address: EC2A 2DQ address: LONDON address: UNITED KINGDOM phone: +442078778050 fax-no: +442074221190 e-mail: firstname.lastname@example.org abuse-c: AR17671-RIPE admin-c: BPN9-RIPE mnt-ref: GFINET-mnt mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: GFINET-mnt created: 2006-11-13T11,11,03Z last-modified: 2017-06-09T07,40,25Z source: RIPE role: BGC Partners RIR address: Hidden e-mail: email@example.com nic-hdl: BPN9-RIPE mnt-by: GFINET-mnt mnt-by: MAINT-BGCP-EMEA created: 2017-06-08T09,34,35Z last-modified: 2017-06-09T07,33,04Z source: RIPE admin-c: LMF41-RIPE admin-c: DP12964-RIPE tech-c: NO1288-RIPE route: 126.96.36.199/21 origin: AS19178 mnt-by: GFINET-mnt created: 2016-04-14T12,20,57Z last-modified: 2017-06-09T07,41,42Z source: RIPE route: 188.8.131.52/21 descr: GFI Holdings origin: AS44402 mnt-by: GFINET-mnt created: 2008-03-06T13,32,23Z last-modified: 2017-06-09T07,41,31Z source: RIPE
IP Addresses in this 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.