194.165.205.0/24
AS30238 · Cisco Systems Ironport Division
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inetnum: 194.165.192.0 - 194.165.223.255 netname: US-OPENDNSINC-19960205 country: DE org: ORG-OI31-RIPE admin-c: ODNS36692-RIPE tech-c: ODNS36692-RIPE status: ALLOCATED PA mnt-by: OPENDNS-MNT mnt-by: RIPE-NCC-HM-MNT created: 2021-03-18T14:28:33Z last-modified: 2022-03-31T20:28:47Z source: RIPE mnt-lower: CISCO-HPS-MNT abuse-email: rir-abuse@cisco.com abuse-c: ODNS65-RIPE abuse-org: ORG-OI31-RIPE organisation: ORG-OI31-RIPE org-name: Cisco OpenDNS LLC country: US org-type: LIR address: 444 Townsend Street address: CA 94107 address: San Francisco address: UNITED STATES admin-c: ODNS36692-RIPE tech-c: ODNS84-RIPE phone: +14153443148 e-mail: jvalcke@opendns.com abuse-c: ODNS65-RIPE notify: rir-tech@cisco.com mnt-ref: OPENDNS-MNT mnt-ref: NETC-SUST-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: OPENDNS-MNT created: 2014-05-28T09:54:22Z last-modified: 2023-07-13T21:37:07Z source: RIPE role: OpenDNS NetEng team address: OpenDNS address: 675 West Hastings Street, Suite 500 address: Vancouver BC V6B 1N2 address: Canada e-mail: rir-admin@cisco.com phone: +1 408 525 0560 abuse-mailbox: rir-abuse@cisco.com nic-hdl: ODNS36692-RIPE mnt-by: OPENDNS-MNT created: 2014-05-29T13:22:57Z last-modified: 2022-09-09T12:10:31Z 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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