109.161.0.0/19
AS13118 · PJSC Rostelecom
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inetnum: 109.161.16.0 - 109.161.31.255 netname: RU-KOSNET descr: Verhnevolzhsky Branch JSC CenterTelecom descr: Kostroma's regional networks country: RU status: ASSIGNED PA admin-c: SKS5-RIPE tech-c: KD2444-RIPE mnt-by: YARTEL-MNT mnt-routes: YARTEL-MNT mnt-lower: ROSTELECOM-MNT mnt-routes: ROSTELECOM-MNT notify: registry@yartelecom.ru created: 2009-12-24T13:54:17Z last-modified: 2017-04-20T08:08:16Z source: RIPE abuse-email: abuse@rt.ru abuse-c: RTNC-RIPE abuse-org: ORG-JR8-RIPE person: Khlapov Dmitriy address: OJSC Rostelecom address: 1, Podlipaeva address: 156961 Kostroma address: Russia phone: +7 4942 621 246 fax-no: +7 4942 621 010 e-mail: dxlapov@kosnet.ru nic-hdl: KD2444-RIPE mnt-by: YARTEL-MNT created: 2014-05-23T11:13:35Z last-modified: 2014-05-23T11:13:35Z source: RIPE person: Sergey K Shubin address: KostromaTelecom address: 1, Podlipaeva address: 156601 Kostroma address: Russia phone: +7 4942 621 245 fax-no: +7 4942 621 020 nic-hdl: SKS5-RIPE mnt-by: YARTEL-MNT e-mail: shubs@kosnet.ru created: 2003-10-15T12:23:39Z last-modified: 2010-11-16T17:19:54Z source: RIPE route: 109.161.16.0/20 descr: Rostelecom networks origin: AS12389 notify: ripe@rt.ru mnt-by: ROSTELECOM-MNT created: 2018-10-31T12:34:19Z last-modified: 2018-10-31T12:34:19Z 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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