AS13443 LinkedIn Corporation
2620:119:5041::/48 - LINKEDIN
V6NetHandle: NET6-2620-119-5000-1 OrgID: LINKE-1 Parent: NET6-2620-1 NetName: LINKEDIN NetRange: 2620:119:5000:: - 2620:119:50FF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 13443, 14413 RegDate: 2014-05-05 Updated: 2014-05-05 Source: ARIN OrgID: LINKE-1 OrgName: LinkedIn Corporation CanAllocate: Street: 1000 W Maude Ave City: Sunnyvale State/Prov: CA Country: US PostalCode: 94085 RegDate: 2006-12-15 Updated: 2018-07-31 OrgTechHandle: ZAL2-ARIN OrgTechHandle: HOSTM905-ARIN OrgNOCHandle: HOSTM905-ARIN OrgAdminHandle: ALIZA-ARIN OrgAbuseHandle: ABUSE3328-ARIN Source: ARIN
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.