AS11282 SERVERYOU INC
2001:470:e3::/48 - HURRICANE-IPV6
V6NetHandle: NET6-2001-470-1 OrgID: HURC Parent: NET6-2001-400-0 NetName: HURRICANE-IPV6 NetRange: 2001:470:: - 2001:470:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation RegDate: 2001-03-22 Updated: 2012-02-24 NOCHandle: ZH17-ARIN AbuseHandle: ABUSE1036-ARIN TechHandle: ZH17-ARIN Source: ARIN OrgID: HURC OrgName: Hurricane Electric LLC CanAllocate: Street: 760 Mission Court City: Fremont State/Prov: CA Country: US PostalCode: 94539 RegDate: 1970-01-01 Updated: 2018-02-09 ReferralServer: rwhois://rwhois.he.net:4321 OrgAbuseHandle: ABUSE1036-ARIN OrgAdminHandle: ZH17-ARIN OrgTechHandle: ZH17-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.