202.4.244.0/24
AS37900 · NTT Communications Corporation
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inetnum: 202.4.244.0 - 202.4.247.255 netname: NTTCOM-JP descr: NTT Communications Corporation country: JP org: ORG-NCCB1-AP admin-c: HT18-AP tech-c: HT18-AP abuse-c: AN916-AP status: ASSIGNED PORTABLE remarks: for ABUSE or SPAM email <noc@ipboot.net> mnt-by: APNIC-HM mnt-routes: MAINT-JP-NTTCOM mnt-irt: IRT-NTTCOM-JP last-modified: 2023-07-25T07:22:24Z source: APNIC irt: IRT-NTTCOM-JP address: Shiodome Bldg 19F, 1-2-20 Kaigan, Minato-ku, Tokyo 105-8535, Japan e-mail: noc@ipboot.net abuse-mailbox: noc@ipboot.net admin-c: HT18-AP tech-c: HT18-AP auth: # Filtered remarks: noc@ipboot.net was validated on 2024-07-29 mnt-by: MAINT-JP-NTTCOM last-modified: 2024-07-29T01:37:54Z source: APNIC organisation: ORG-NCCB1-AP org-name: NTT Communications Corporation org-type: LIR country: JP address: 3-4-1 Shibaura address: Grand Park Tower 21F phone: +81-3-6733-8623 fax-no: +81-3-5439-0485 e-mail: noc@ipboot.net mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:14:53Z source: APNIC role: ABUSE NTTCOMJP country: ZZ address: Shiodome Bldg 19F, 1-2-20 Kaigan, Minato-ku, Tokyo 105-8535, Japan phone: +000000000 e-mail: noc@ipboot.net admin-c: HT18-AP tech-c: HT18-AP nic-hdl: AN916-AP remarks: Generated from irt object IRT-NTTCOM-JP remarks: noc@ipboot.net was validated on 2024-07-29 abuse-mailbox: noc@ipboot.net mnt-by: APNIC-ABUSE last-modified: 2024-07-29T01:38:25Z source: APNIC person: Hiroyuki Tanahashi nic-hdl: HT18-AP e-mail: tanahasi@jp.ntt.net address: Tamachi Granpark Tower 16F, 3-4-1 Shibaura, Minato-ku, Tokyo 108-8118, Japan phone: +81-3-6733-7177 fax-no: +81-3-3435-1479 country: JP mnt-by: MAINT-JP-NTTCOM last-modified: 2014-09-02T08:33:36Z source: APNIC route: 202.4.244.0/22 origin: AS37900 descr: NTT Communications Corporation 3-4-1 Shibaura Grand Park Tower 21F mnt-by: MAINT-JP-NTTCOM last-modified: 2023-07-25T06:22:32Z 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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