V6NetHandle: NET6-2620-160-2 OrgID: WFB-2 Parent: NET6-2620-1 NetName: WFC-IPV6 NetRange: 2620:160:: - 2620:160:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment Comment: ZW100-ARIN RegDate: 2010-12-10 Updated: 2012-03-02 AbuseHandle: ZW100-ARIN NOCHandle: ZW100-ARIN TechHandle: ZW100-ARIN Source: ARIN OrgID: WFB-2 OrgName: Wells Fargo & Company CanAllocate: Street: 420 Montgomery ST City: San Francisco State/Prov: CA Country: US PostalCode: 94104 RegDate: 1991-07-30 Updated: 2017-01-28 OrgTechHandle: ZW100-ARIN OrgAbuseHandle: ZW100-ARIN OrgAdminHandle: ZW100-ARIN OrgNOCHandle: ZW100-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.