219.72.200.0/22
AS18118 · CITIC Networks Management Co.,Ltd.
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inetnum: 219.72.0.0 - 219.72.255.255 netname: CITICNET-CN descr: CITIC Networks Management Co.,Ltd. descr: 6 XINYUANNANLU BEIJING country: CN admin-c: JW1787-AP tech-c: DH410-AP abuse-c: AC1601-AP status: ALLOCATED PORTABLE mnt-by: MAINT-CNNIC-AP mnt-irt: IRT-CITICNET-CN-CN mnt-lower: MAINT-CNNIC-AP mnt-routes: MAINT-CNNIC-AP mnt-routes: MAINT-CN-CITICNET mnt-routes: MAINT-CN-CITICNET1 last-modified: 2023-11-28T00:57:29Z source: APNIC irt: IRT-CITICNET-CN-CN address: 1/F Capital Mansion,6# Xinyuannanlu,Beijing,PRC e-mail: wangjh1@citic.com abuse-mailbox: wangjh1@citic.com auth: # Filtered admin-c: JW1787-AP tech-c: JW1787-AP mnt-by: MAINT-CNNIC-AP last-modified: 2021-09-05T23:38:39Z source: APNIC role: ABUSE CNNICCN country: ZZ address: Beijing, China phone: +000000000 e-mail: ipas@cnnic.cn admin-c: IP50-AP tech-c: IP50-AP nic-hdl: AC1601-AP remarks: Generated from irt object IRT-CNNIC-CN abuse-mailbox: ipas@cnnic.cn mnt-by: APNIC-ABUSE last-modified: 2024-07-30T11:55:46Z source: APNIC person: Dongqing Han nic-hdl: DH410-AP e-mail: handq@citicnet.com address: No. 20, Fuxing Road, Beijing phone: +86-010-66816039 fax-no: +86-010-66813424 country: CN mnt-by: MAINT-CNNIC-AP last-modified: 2008-09-04T07:30:24Z source: APNIC person: Jianhua Wang nic-hdl: JW1787-AP address: 1/F Capital Mansion address: #6 Xinyuannanlu address: Beijing, 100004 address: China country: CN phone: +86-10-84868800-8101 fax-no: +86-10-84861080 e-mail: wangjh@citicnet.com mnt-by: MAINT-CNNIC-AP last-modified: 2008-09-04T07:53:52Z source: APNIC route: 219.72.0.0/16 descr: CITICNET descr: CITIC Networks Management Co.,Ltd. country: CN origin: AS18118 mnt-by: MAINT-CN-CITICNET notify: mof@citicnet.com notify: handq@citicnet.com last-modified: 2008-09-04T07:54:29Z source: APNIC
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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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