139.91.250.0/24
AS8522 · Foundation of Research and Technology Hellas
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inetnum: 139.91.0.0 - 139.91.255.255 netname: FORTH descr: P.O. Box 1385 descr: 71110 Heraklio, Crete country: GR org: ORG-FORA4-RIPE admin-c: DP97 tech-c: PS5334-RIPE status: LEGACY mnt-by: RIPE-NCC-LEGACY-MNT mnt-by: FORTH-NOC-MNT mnt-lower: FORTH-NOC-MNT mnt-routes: FORTH-NOC-MNT notify: noc@ics.forth.gr created: 1970-01-01T00:00:00Z last-modified: 2020-11-16T17:43:17Z source: RIPE sponsoring-org: ORG-GRaT1-RIPE abuse-email: abuse@ics.forth.gr abuse-c: FN1343-RIPE abuse-org: ORG-GRaT1-RIPE organisation: ORG-FoRa4-RIPE org-name: Foundation of Research and Technology Hellas country: GR org-type: OTHER address: N. Plastira 100 address: Heraklion, Crete address: GR 70013 notify: noc@ics.forth.gr e-mail: noc@ics.forth.gr admin-c: fn1343-ripe mnt-ref: FORTH-NOC-MNT mnt-by: FORTH-NOC-MNT abuse-c: FN1343-RIPE created: 2007-04-17T15:17:42Z last-modified: 2022-12-01T16:26:20Z source: RIPE person: Demos Panagopoulos org: ORG-FORA4-RIPE address: Foundation of Research and Technology Hellas address: Computer Science Institute address: Science and TEchnology Park, Heraklion, Crete, Greece 71003 mnt-by: FORTH-NOC-MNT phone: +30.2810391640 e-mail: dimos@ics.forth.gr nic-hdl: DP97 created: 1970-01-01T00:00:00Z last-modified: 2007-10-23T10:25:33Z source: RIPE person: Panagiotis Sikas org: ORG-FORA4-RIPE address: Foundation of Research and Technology - Hellas, Institute of Computer Science address: N. Plastira 100 address: Heraklion, 70013 address: GR phone: +30.2810391640 fax-no: +30.2810391641 e-mail: sikas@ics.forth.gr mnt-by: forth-noc-mnt nic-hdl: PS5334-RIPE address: sikas@ics.forth.gr created: 2005-06-24T17:05:34Z last-modified: 2007-10-23T10:32:49Z source: RIPE route: 139.91.0.0/16 descr: FORTH origin: AS8522 mnt-by: FORTH-NOC-MNT notify: noc@ics.forth.gr created: 1970-01-01T00:00:00Z last-modified: 2005-10-20T07:40:53Z 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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