81.91.170.0/24
AS8763 · DENIC eG
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inetnum: 81.91.160.0 - 81.91.175.255 org: ORG-De1-RIPE netname: DE-DENIC-20020718 country: DE admin-c: DCRA1 tech-c: DCRA1 status: ALLOCATED PA notify: ripe@denic.de mnt-by: RIPE-NCC-HM-MNT mnt-by: DE-DOM mnt-routes: DE-DOM created: 2002-07-18T14:28:19Z last-modified: 2016-10-24T11:22:16Z source: RIPE abuse-email: abuse@denic.de abuse-c: DBS-DE abuse-org: ORG-De1-RIPE organisation: ORG-De1-RIPE org-name: DENIC eG country: DE org-type: LIR address: Theodor-Stern-Kai 1 address: 60596 address: Frankfurt address: GERMANY phone: +4969272350 fax-no: +496927235235 mnt-ref: DE-DOM mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: DE-DOM admin-c: HD4-RIPE admin-c: js5000-ripe abuse-c: DBS-DE created: 2004-04-17T11:06:33Z last-modified: 2023-04-04T12:44:42Z source: RIPE e-mail: ripe@denic.de role: DENIC role account address: DENIC eG address: Theodor-Stern-Kai 1 address: 60596 Frankfurt am Main address: Germany phone: +49 69 27235 272 fax-no: +49 69 27235 234 remarks: trouble: info: https://www.denic.de remarks: trouble: info: mailto:dbs@denic.de remarks: trouble: Tel.: +49 69 2 72 35 - 0 e-mail: ripe@denic.de admin-c: js5000-ripe tech-c: MP29648-RIPE nic-hdl: DCRA1 remarks: DENIC Business Services remarks: at the German Network Information Center (DENIC) remarks: Top Level Domain for Germany (.de) mnt-by: DE-DOM created: 2012-10-25T08:29:25Z last-modified: 2023-04-04T12:24:17Z source: RIPE route: 81.91.160.0/20 descr: DENIC eG origin: AS8763 notify: ripe@denic.de mnt-by: DE-DOM created: 2002-07-25T10:32:54Z last-modified: 2002-07-25T10:32:54Z source: RIPE
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What are IP address ranges?
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.
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