91.209.250.0/24
AS39380 · Paul-Ehrlich-Institut
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inetnum: 91.209.250.0 - 91.209.250.255 netname: PEI-NET1 descr: Paul-Ehrlich-Institut country: DE org: ORG-PA133-RIPE sponsoring-org: ORG-HMG1-RIPE admin-c: HR1519-RIPE tech-c: MDNT1-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: MEDIANET-MNT mnt-routes: MEDIANET-MNT mnt-domains: MEDIANET-MNT created: 2009-01-12T16:30:55Z last-modified: 2022-01-05T12:41:56Z source: RIPE abuse-email: pei@pei.de abuse-c: AC31121-RIPE abuse-org: ORG-HMG1-RIPE organisation: ORG-PA133-RIPE org-type: OTHER org-name: Paul-Ehrlich-Institut country: DE address: Paul-Ehrlich-Strasse 51-59 address: 63225 Langen address: Germany e-mail: pei@pei.de abuse-c: AC31121-RIPE mnt-ref: MEDIANET-MNT mnt-by: MEDIANET-MNT created: 2006-02-10T08:58:45Z last-modified: 2022-12-01T16:41:49Z source: RIPE role: AS12897 Network Management address: ENTEGA Medianet GmbH address: Network Management Center address: Frankfurter Strasse 100 address: 64293 Darmstadt address: Germany phone: +49 1805 383638 e-mail: hostmaster@entega-medianet.de abuse-mailbox: abuse@entega-medianet.de admin-c: ADMN13-RIPE tech-c: CU20-RIPE tech-c: TK191-RIPE tech-c: RK1944-RIPE tech-c: CM12788-RIPE tech-c: AM52223-RIPE nic-hdl: MDNT1-RIPE mnt-by: MEDIANET-MNT created: 2021-03-30T16:30:45Z last-modified: 2024-08-21T09:54:33Z source: RIPE person: Helmar Richter address: Paul-Ehrlich-Institut address: Paul-Ehrlich-Strasse 51-59 address: 63225 Langen address: Germany phone: +49 6103 77 1500 e-mail: riche@pei.de nic-hdl: HR1519-RIPE mnt-by: MEDIANET-MNT created: 2006-02-09T11:59:40Z last-modified: 2022-01-14T13:22:36Z source: RIPE route: 91.209.250.0/24 descr: Paul-Ehrlich-Institut origin: AS39380 mnt-by: MEDIANET-MNT created: 2009-01-14T06:11:26Z last-modified: 2022-01-05T12:42:15Z 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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