217.21.172.0/22
AS15721 · C.T.CO. Ltd.
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inetnum: 217.21.172.0 - 217.21.175.239 netname: CTCO-SPEC descr: C.T.Co Ltd country: LV admin-c: CH951-RIPE tech-c: CH951-RIPE status: ASSIGNED PA mnt-by: CTCO-MNT created: 2008-07-25T09:21:21Z last-modified: 2008-07-25T10:03:32Z source: RIPE abuse-email: sysadmin@ctco.lv abuse-c: CAC84-RIPE abuse-org: ORG-CL2-RIPE role: CTCO Hostmaster address: Meistaru Street 33 address: Valdlauchi, LV-1076, Latvia phone: +37166952059 e-mail: sysadmin@ctco.lv admin-c: PG4602-RIPE tech-c: AS6824-RIPE tech-c: KR559-RIPE nic-hdl: CH951-RIPE notify: sysadmin@ctco.lv mnt-by: CTCO-MNT created: 2003-04-10T15:06:48Z last-modified: 2024-01-04T12:31:08Z source: RIPE route: 217.21.172.0/22 origin: AS15721 mnt-by: CTCO-MNT created: 2016-10-10T06:53:44Z last-modified: 2016-10-10T06:54:15Z source: RIPE descr: CTCO-NET
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Hosted domains API
IP addresses in this range
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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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