188.8.131.52/20 - MACROREGIONAL_CENTER
inetnum: 184.108.40.206 - 220.127.116.11 netname: MACROREGIONAL_CENTER descr: OJSC Rostelecom, Tula branch descr: ex-netname: RU-TULATELECOM-ADSL2 country: RU admin-c: KSC2-RIPE tech-c: IYK5-RIPE status: ASSIGNED PA mnt-by: TULATEL-MNT-RIPE created: 2009-04-14T06:04:05Z last-modified: 2012-08-21T11:58:43Z source: RIPE person: Inoyat Y. Kayumov address: Tula's Branch OJSC CenterTelecom address: 33, Pr. Lenina address: 300000, Tula, Russia e-mail: firstname.lastname@example.org remarks: phone: +7 0872 360778 phone: +7 4872 360778 nic-hdl: IYK5-RIPE mnt-by: TULATEL-MNT-RIPE created: 2004-12-22T15:03:45Z last-modified: 2014-02-13T07:09:16Z source: RIPE remarks: modified for Russian phone area changes person: Konstantin S. Chesnokov address: Tula's Branch OJSC CenterTelecom address: 33, Pr. Lenina address: 300000, Tula, Russia remarks: phone: +7 0872 360778 phone: +7 4872 360778 e-mail: email@example.com nic-hdl: KSC2-RIPE mnt-by: TULATEL-MNT-RIPE created: 1970-01-01T00:00:00Z last-modified: 2005-12-16T18:36:33Z source: RIPE remarks: modified for Russian phone area changes route: 18.104.22.168/18 descr: Top half prefix route origin: AS8675 mnt-by: TULATEL-MNT-RIPE created: 2009-04-14T06:09:10Z last-modified: 2009-04-14T06:09:10Z 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.