2620:11e:9001::/48 - ETSYV6
V6NetHandle: NET6-2620-11E-9000-1 OrgID: ETSYI Parent: NET6-2620-1 NetName: ETSYV6 NetRange: 2620:11E:9000:: - 2620:11E:900F:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 12196 Comment: https://www.etsy.com RegDate: 2015-03-06 Updated: 2015-03-06 Source: ARIN OrgID: ETSYI OrgName: Etsy Inc. CanAllocate: Street: 117 Adams Street City: Brooklyn State/Prov: NY Country: US PostalCode: 11201 Comment: A Place For All Goods Handmade RegDate: 2007-08-27 Updated: 2016-06-22 OrgTechHandle: SYSTE197-ARIN OrgAbuseHandle: SYSTE197-ARIN OrgAdminHandle: SYSTE197-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.