V6NetHandle: NET6-2607-1D80-1 OrgID: MSEA Parent: NET6-2600-1 NetName: MSEA-NET6 NetRange: 2607:1D80:: - 2607:1D80:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 394924 RegDate: 2016-03-18 Updated: 2016-03-18 Source: ARIN OrgID: MSEA OrgName: Mitchell Seaforth Cable TV CanAllocate: Street: 123 Ontario St. City: Dublin State/Prov: ON Country: CA PostalCode: N0K-1E0 RegDate: 2002-01-22 Updated: 2017-01-28 OrgTechHandle: RMC42-ARIN OrgAbuseHandle: ABUSE5416-ARIN OrgTechHandle: JV585-ARIN OrgTechHandle: CORNE93-ARIN OrgAdminHandle: JV585-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.