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inetnum: 188.8.131.52 - 184.108.40.206 org: ORG-BPIS1-RIPE netname: UK-BT-981015 country: GB admin-c: SW4727-RIPE tech-c: FLS15-RIPE admin-c: MM5322-RIPE admin-c: NM13-RIPE tech-c: MM5322-RIPE tech-c: NM13-RIPE status: ALLOCATED PA mnt-by: RIPE-NCC-HM-MNT mnt-by: BTNET-INFRA-MNT mnt-lower: BICSystems_mnt mnt-lower: BTNET-INFRA-MNT mnt-routes: BICSystems_mnt mnt-routes: BTNET-INFRA-MNT notify: email@example.com created: 2002-07-09T09,31,33Z last-modified: 2016-09-19T07,29,27Z source: RIPE organisation: ORG-BPIS1-RIPE org-name: British Telecommunications PLC org-type: LIR address: Room 211, Telephone Exchange(CWT-LA), Cawthorne Street address: LA1 1TG address: Lancaster, Lancashire address: UNITED KINGDOM phone: +442077777766 fax-no: +441524381064 abuse-c: AR13878-RIPE mnt-ref: BTNET-MNT mnt-ref: BTNET-INFRA-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: BTNET-INFRA-MNT admin-c: SW4727-RIPE admin-c: SAM62-RIPE admin-c: FLS15-RIPE admin-c: DY298-RIPE admin-c: AC23929-RIPE admin-c: MG12414-RIPE admin-c: GF1231-RIPE created: 2004-04-17T12,11,50Z last-modified: 2016-09-19T07,30,13Z source: RIPE e-mail: firstname.lastname@example.org role: FIRST LINE SUPPORT address: Room 211 address: Telephone Exchange (CWT-LA) address: Cawthorne Street address: Lancaster address: Lancashire address: LA1 1TG address: UK phone: +44 207 777 7766 fax-no: +44 1524 381064 e-mail: email@example.com e-mail: firstname.lastname@example.org remarks: trouble, 1st Line Support remarks: Please send delisting issues to email@example.com admin-c: SW4727-RIPE tech-c: DY298-RIPE nic-hdl: FLS15-RIPE mnt-by: BTNET-INFRA-MNT created: 2002-08-29T06,26,48Z last-modified: 2014-10-14T13,03,22Z source: RIPE person: BT MSC Networks address: BT, Telephone House address: 45 May Street address: Belfast address: Northern Ireland address: BT1 4NB phone: +44 2890218801 fax-no: +44 2890218801 notify: firstname.lastname@example.org e-mail: email@example.com nic-hdl: MM5322-RIPE created: 1970-01-01T00,00,00Z last-modified: 2016-03-14T10,37,13Z source: RIPE mnt-by: BT-MSC-NETWORKS person: Neil Morris address: Enterprise House address: 201 Airport Road West address: Belfast address: BT3 9ED phone: +44 7775 576862 nic-hdl: NM13-RIPE created: 2004-09-24T09,50,09Z last-modified: 2016-04-06T15,51,05Z mnt-by: RIPE-NCC-LOCKED-MNT source: RIPE person: Steve Wright address: Room 207 address: Telephone Exchange address: Cawthorne Street address: Lancaster address: UK phone: +44 (0)20 7777 7766 fax-no: +44 (0)1524 381064 e-mail: firstname.lastname@example.org nic-hdl: SW4727-RIPE mnt-by: BTNET-INFRA-MNT created: 2001-09-25T17,22,31Z last-modified: 2014-08-14T13,32,12Z source: RIPE route: 220.127.116.11/19 descr: BTNI origin: AS2856 mnt-by: BTNET-INFRA-MNT notify: email@example.com created: 2016-05-25T08,42,21Z last-modified: 2016-05-25T08,42,21Z 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.