103.252.172.0/22
AS133465 · Duke Kunshan University
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WHOIS Details
inetnum: 103.252.172.0 - 103.252.175.255 netname: DKU-CN descr: 1699 Zuchongzhi Road descr: Kunshan, Jiangsu, China country: CN org: ORG-DKU1-AP admin-c: DKUA1-AP tech-c: DKUA1-AP abuse-c: AD1006-AP status: ALLOCATED PORTABLE remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+ remarks: This object can only be updated by APNIC hostmasters. remarks: To update this object, please contact APNIC remarks: hostmasters and include your organisation's account remarks: name in the subject line. remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+ mnt-by: APNIC-HM mnt-lower: MAINT-DKU-CN mnt-routes: MAINT-DKU-CN mnt-irt: IRT-DKU-CN last-modified: 2020-11-10T13:11:02Z source: APNIC irt: IRT-DKU-CN address: 1699 Zuchongzhi Road, Kunshan, Jiangsu, China, Kunshan Jiangsu 215300 e-mail: network-apnic@duke.edu abuse-mailbox: network-apnic@duke.edu admin-c: DKUA1-AP tech-c: DKUA1-AP auth: # Filtered remarks: network-apnic@duke.edu was validated on 2024-09-04 mnt-by: MAINT-DKU-CN last-modified: 2024-09-04T15:07:35Z source: APNIC organisation: ORG-DKU1-AP org-name: Duke Kunshan University org-type: LIR country: CN address: No. 8 Duke Avenue address: Kunshan, Jiangsu, China phone: +86 512 36657044 fax-no: +86 512 57728899 e-mail: richard.biever@duke.edu mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:16:16Z source: APNIC role: ABUSE DKUCN country: ZZ address: 1699 Zuchongzhi Road, Kunshan, Jiangsu, China, Kunshan Jiangsu 215300 phone: +000000000 e-mail: network-apnic@duke.edu admin-c: DKUA1-AP tech-c: DKUA1-AP nic-hdl: AD1006-AP remarks: Generated from irt object IRT-DKU-CN remarks: network-apnic@duke.edu was validated on 2024-09-04 abuse-mailbox: network-apnic@duke.edu mnt-by: APNIC-ABUSE last-modified: 2024-09-04T15:08:27Z source: APNIC role: Duke Kunshan University administrator address: 1699 Zuchongzhi Road, Kunshan, Jiangsu, China, Kunshan Jiangsu 215300 country: CN phone: +1 919 684 8121 fax-no: +1 919 684 8121 e-mail: richard.biever@duke.edu admin-c: DKUA1-AP tech-c: DKUA1-AP nic-hdl: DKUA1-AP mnt-by: MAINT-DKU-CN last-modified: 2013-10-20T08:06:14Z source: APNIC route: 103.252.172.0/22 descr: Route object for 103.252.172.0/22 origin: AS133465 mnt-by: MAINT-DKU-CN country: CN last-modified: 2017-12-18T04:00:50Z source: APNIC
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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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