188.8.131.52/21 - DE-RRBONE-20110401
AS39138 rrbone GmbH
inetnum: 184.108.40.206 - 220.127.116.11 netname: DE-RRBONE-20110401 country: EU org: ORG-rU4-RIPE admin-c: DB4242-RIPE tech-c: DB4242-RIPE status: ALLOCATED PA notify: firstname.lastname@example.org mnt-by: RIPE-NCC-HM-MNT mnt-by: RRBONE-MNT mnt-lower: RRBONE-MNT mnt-routes: RRBONE-MNT created: 2014-09-08T11:01:56Z last-modified: 2018-07-15T07:42:24Z source: RIPE organisation: ORG-rU4-RIPE org-name: rrbone GmbH org-type: LIR address: Ruhrallee 9 address: 44139 address: Dortmund address: GERMANY phone: +4923120645898 fax-no: +4923120645899 e-mail: email@example.com admin-c: DB4242-RIPE admin-c: IW4242-RIPE tech-c: ZNOC-RIPE abuse-c: ZNOC-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: RRBONE-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: RRBONE-MNT created: 2011-03-09T14:14:42Z last-modified: 2018-08-28T13:55:41Z source: RIPE person: Dominik Bay address: rrbone GmbH address: Ruhrallee 9 address: D-44139 Dortmund phone: +49 231 20 64 5898 fax-no: +49 231 20 64 5899 e-mail: firstname.lastname@example.org nic-hdl: DB4242-RIPE mnt-by: RRBONE-MNT notify: email@example.com created: 2004-06-12T14:47:07Z last-modified: 2018-08-28T14:35:07Z source: RIPE route: 18.104.22.168/21 descr: rrbone PA Route origin: AS39138 mnt-by: RRBONE-MNT created: 2014-09-03T12:58:30Z last-modified: 2014-09-03T12:58:30Z 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.