V6NetHandle: NET6-2606-6800-C0A-1 OrgID: BFEC Parent: NET6-2606-6800-1 NetName: VX-2606-6800-0C0A-48 NetRange: 2606:6800:C0A:: - 2606:6800:C0A:FFFF:FFFF:FFFF:FFFF:FFFF NetType: reallocation OriginAS: 1277 RegDate: 2015-11-02 Updated: 2015-11-02 Source: ARIN OrgID: BFEC OrgName: B&H Foto & Electronics Corp. CanAllocate: Street: 420 Ninth Avenue City: New York State/Prov: NY Country: US PostalCode: 10001 RegDate: 2015-11-02 Updated: 2015-11-02 OrgAdminHandle: NOC32450-ARIN OrgTechHandle: NOC32450-ARIN OrgAbuseHandle: NOC32450-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.