37.221.73.0/24
AS16509 · Amazon.com, Inc.
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inetnum: 37.221.73.0 - 37.221.73.255 netname: unzer-aws-eu-c1-pool2 country: DE admin-c: AF17112-RIPE tech-c: HA4903-RIPE status: ASSIGNED PA mnt-by: unzer-de-mnt created: 2023-11-06T11:27:21Z last-modified: 2023-11-06T11:27:21Z source: RIPE notify: network@unzer.com org: ORG-HSG12-RIPE abuse-email: abuse@unzer.com abuse-c: AR48523-RIPE abuse-org: ORG-HSG12-RIPE organisation: ORG-HSG12-RIPE org-name: Unzer Group GmbH country: DE org-type: LIR address: Schoeneberger Strasse 21a address: 10963 address: Berlin address: GERMANY phone: +49 30 837 93 000 e-mail: network@unzer.com admin-c: AF17112-RIPE tech-c: HA4903-RIPE abuse-c: AR48523-RIPE mnt-ref: unzer-de-mnt mnt-by: RIPE-NCC-HM-MNT mnt-by: unzer-de-mnt created: 2018-10-01T16:01:35Z last-modified: 2024-09-02T10:10:49Z source: RIPE person: Amir Friedman address: Schoeneberger Strasse 21a, 10963, Berlin phone: +49 152 09269512 nic-hdl: AF17112-RIPE mnt-by: unzer-de-mnt created: 2022-09-26T13:53:10Z last-modified: 2025-01-24T13:44:48Z source: RIPE person: Hooman Ahmadi address: Vangerowstraße 18, 69115, Heidelberg phone: +49 (6221) 43101-00 nic-hdl: HA4903-RIPE mnt-by: unzer-de-mnt created: 2022-09-26T13:50:17Z last-modified: 2022-09-26T15:07:51Z source: RIPE route: 37.221.73.0/24 origin: AS16509 mnt-by: unzer-de-mnt created: 2021-05-21T11:20:25Z last-modified: 2023-11-06T11:52:44Z source: RIPE org: ORG-HSG12-RIPE notify: network@unzer.com organisation: ORG-HSG12-RIPE org-name: Unzer Group GmbH country: DE org-type: LIR address: Schoeneberger Strasse 21a address: 10963 address: Berlin address: GERMANY phone: +49 30 837 93 000 e-mail: network@unzer.com admin-c: AF17112-RIPE tech-c: HA4903-RIPE abuse-c: AR48523-RIPE mnt-ref: unzer-de-mnt mnt-by: RIPE-NCC-HM-MNT mnt-by: unzer-de-mnt created: 2018-10-01T16:01:35Z last-modified: 2024-09-02T10:10:49Z 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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