91.203.97.0/24
AS39832 · Opera Norway AS
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inetnum: 91.203.96.0 - 91.203.99.255 netname: NO-OPERA country: NO org: ORG-OSA28-RIPE admin-c: OSA34-RIPE tech-c: OSA34-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: OPERA-MNT mnt-routes: OPERA-MNT mnt-domains: OPERA-MNT created: 2008-04-11T08:01:27Z last-modified: 2020-11-06T11:55:57Z source: RIPE abuse-email: abuse@opera.software abuse-c: OSAA1-RIPE abuse-org: ORG-OSA28-RIPE organisation: ORG-OSA28-RIPE org-name: Opera Norway AS country: NO org-type: LIR address: Vitaminveien 4 address: NO-0485 address: OSLO address: NORWAY phone: +4723692400 fax-no: +4723692401 e-mail: hostmaster@opera.com admin-c: OSA34-RIPE abuse-c: OSAA1-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: OPERA-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: OPERA-MNT created: 2010-10-13T13:04:36Z last-modified: 2023-04-19T07:29:05Z source: RIPE role: Opera Software AS Netops address: P.O. Box 4214 Nydalen address: NO-0401 Oslo address: Norway e-mail: netops@opera.com abuse-mailbox: abuse@opera.software admin-c: MA22371-RIPE tech-c: MA22371-RIPE nic-hdl: OSA34-RIPE mnt-by: OPERA-MNT created: 2010-09-01T09:04:57Z last-modified: 2020-11-06T11:21:25Z source: RIPE route: 91.203.96.0/22 descr: NO-OPERA origin: AS39832 mnt-by: OPERA-MNT created: 2008-04-11T10:34:04Z last-modified: 2020-11-06T11:55:38Z 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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