2620:101:f000::/47 - UWATERLOO-V6
V6NetHandle: NET6-2620-101-F000-1 OrgID: UNIVER-312 Parent: NET6-2620-1 NetName: UWATERLOO-V6 NetRange: 2620:101:F000:: - 2620:101:F001:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 12093 Comment: http://www.uwaterloo.ca/ RegDate: 2011-02-11 Updated: 2012-03-02 AbuseHandle: SAR43-ARIN NOCHandle: TECHN619-ARIN TechHandle: TECHN619-ARIN Source: ARIN OrgID: UNIVER-312 OrgName: University of Waterloo CanAllocate: Street: 200 University Avenue West City: Waterloo State/Prov: ON Country: CA PostalCode: N2L-3G1 RegDate: 1987-10-25 Updated: 2016-09-22 OrgAdminHandle: ADMIN1242-ARIN OrgTechHandle: VERLI-ARIN OrgTechHandle: BOURQ-ARIN OrgAbuseHandle: SAR43-ARIN OrgTechHandle: TECHN619-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.