212.12.21.0/24
AS8675 · PJSC Rostelecom
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inetnum: 212.12.21.0 - 212.12.21.255 netname: TULATEL-ACCSS21-NET descr: OJSC TULATELECOM Access Network (STK 2nd pool) country: RU admin-c: KSC2-RIPE tech-c: IYK5-RIPE status: ASSIGNED PA remarks: mnt-by: ROSTELECOM-MNT created: 2024-12-20T07:46:31Z last-modified: 2024-12-20T07:46:31Z source: RIPE abuse-email: abuse@rt.ru abuse-c: RTNC-RIPE abuse-org: ORG-JR8-RIPE person: Inoyat Y. Kayumov address: Tula's Branch OJSC CenterTelecom address: 33, Pr. Lenina address: 300000, Tula, Russia e-mail: inoyat_kayumov@center.rt.ru remarks: phone: +7 0872 360778 phone: +7 4872 360778 nic-hdl: IYK5-RIPE mnt-by: TULATEL-MNT-RIPE created: 2004-12-22T15:03:45Z last-modified: 2014-02-13T07:09:16Z source: RIPE remarks: modified for Russian phone area changes person: Konstantin S. Chesnokov address: Rostelecom address: pr.Lenina, 33 address: 300062, Tula, Russia phone: +74872308070 e-mail: kschesnokov@gmail.com nic-hdl: KSC2-RIPE mnt-by: TULATEL-MNT-RIPE created: 1970-01-01T00:00:00Z last-modified: 2021-09-21T07:22:33Z source: RIPE route: 212.12.21.0/24 descr: Specific route for load balansing origin: AS8675 notify: noc@tula.net mnt-by: ROSTELECOM-MNT created: 2024-12-23T07:27:47Z last-modified: 2024-12-23T07:27:47Z 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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