V6NetHandle: NET6-2620-106-7000-1 OrgID: SCEAL Parent: NET6-2620-1 NetName: SCEAPD-IPV6-1 NetRange: 2620:106:7000:: - 2620:106:70FF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 11795 RegDate: 2011-08-04 Updated: 2012-08-22 Source: ARIN OrgID: SCEAL OrgName: Sony Computer Entertainment America LLC CanAllocate: Street: 10075 Barnes Canyon Road City: San Diego State/Prov: CA Country: US PostalCode: 92121 RegDate: 2011-05-24 Updated: 2011-09-24 OrgNOCHandle: SCEAP1-ARIN OrgTechHandle: SCEAP-ARIN OrgAdminHandle: SCEAP-ARIN OrgAbuseHandle: SCEAP-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.