121.201.112.0/20
AS38372 · RJNET
WHOIS Details
inetnum: 121.201.0.0 - 121.201.127.255 netname: RJNET descr: Guangdong RuiJiang Science and Tech Ltd. descr: Room 404 ,No.100, Lingnan Avenue North, descr: Lingnan Building, Foshan, GuangDong, country: CN admin-c: WY1-AUTO tech-c: HZ1-AUTO abuse-c: AC1910-AP status: ALLOCATED NON-PORTABLE mnt-by: MAINT-AP-CNISP mnt-irt: IRT-CNISP-CN last-modified: 2021-02-17T13:08:53Z source: APNIC irt: IRT-CNISP-CN address: Beijing CNISP Technology Co., Ltd e-mail: support@cnispgroup.com abuse-mailbox: support@cnispgroup.com admin-c: CM2275-AP tech-c: CM2275-AP auth: # Filtered remarks: support@cnispgroup.com was validated on 2022-10-18 mnt-by: MAINT-AP-CNISP last-modified: 2022-10-18T03:54:53Z source: APNIC role: ABUSE CNISPCN address: Beijing CNISP Technology Co., Ltd country: ZZ phone: +000000000 e-mail: support@cnispgroup.com admin-c: CM2275-AP tech-c: CM2275-AP nic-hdl: AC1910-AP remarks: Generated from irt object IRT-CNISP-CN remarks: support@cnispgroup.com was validated on 2022-10-18 abuse-mailbox: support@cnispgroup.com mnt-by: APNIC-ABUSE last-modified: 2022-10-18T03:55:03Z source: APNIC person: Huo Zhifeng nic-hdl: HZ1-AUTO e-mail: huozf@efly.cc address: Room 404 ,No.100, Lingnan Avenue North, address: Lingnan Building, Foshan, GuangDong, phone: +86-0757-88031024 country: CN mnt-by: MAINT-AP-CNISP last-modified: 2013-08-20T07:04:23Z source: APNIC person: Wang Yang nic-hdl: WY1-AUTO e-mail: wangy@efly.cc address: Room 404 ,No.100, Lingnan Avenue North, address: Lingnan Building, Foshan, GuangDong, phone: +86-0757-88031024 country: CN mnt-by: MAINT-AP-CNISP last-modified: 2013-08-20T07:04:22Z source: APNIC route: 121.201.0.0/17 descr: CNC Group CHINA169 Guangdong Province Network descr: Addresses from CNNIC(HUANDAO) country: CN origin: AS17623 mnt-by: MAINT-CNCGROUP-RR last-modified: 2008-09-04T07:55:08Z 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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