151.236.224.0/20
AS28952 · O2 Business Services, a.s
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inetnum: 151.236.224.0 - 151.236.239.255 netname: SK-TO2SK-20120816 country: SK org: ORG-TOSs1-RIPE admin-c: SKTO2-RIPE tech-c: SKTO2-RIPE status: ALLOCATED PA mnt-by: RIPE-NCC-HM-MNT mnt-by: O2SK-MNT mnt-lower: TO2SK-MNT mnt-routes: TO2SK-MNT created: 2012-08-16T07:18:35Z last-modified: 2017-08-08T13:48:33Z source: RIPE abuse-email: abuse@o2bs.sk abuse-c: SKTO2-RIPE abuse-org: ORG-TOSs1-RIPE organisation: ORG-TOSS1-RIPE org-name: O2 Slovakia, s.r.o. country: SK org-type: LIR address: Einsteinova 24 address: 851 01 address: Bratislava address: SLOVAKIA phone: +421 2 620 20 100 phone: +421 940 99 00 99 e-mail: bohuslav.plucinsky@o2.sk mnt-ref: RIPE-NCC-HM-MNT mnt-ref: O2SK-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: O2SK-MNT admin-c: SKTO2-RIPE abuse-c: SKTO2-RIPE created: 2006-12-22T11:11:08Z last-modified: 2023-05-04T12:16:53Z source: RIPE role: SKTO2-RIPE role address: O2 Slovakia, s.r.o address: Einsteinova 24 address: 851 01 Bratislava address: Slovakia e-mail: bohuslav.plucinsky@o2.sk admin-c: IG3785-RIPE tech-c: BP323-RIPE abuse-mailbox: abuse@o2bs.sk nic-hdl: SKTO2-RIPE mnt-by: O2SK-MNT created: 2006-11-03T10:31:34Z last-modified: 2022-03-30T08:09:11Z source: RIPE route: 151.236.224.0/20 descr: Telefonica O2 Slovakia s.r.o. origin: AS5610 mnt-by: AS5610-MTN created: 2012-10-29T14:58:49Z last-modified: 2012-10-29T14:58:49Z 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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