V6NetHandle: NET6-2607-F6A0-1 OrgID: NETE Parent: NET6-2600-1 NetName: NETENTERPRISE-IPV6-BLK1 NetRange: 2607:F6A0:: - 2607:F6A0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11563 RegDate: 2008-10-31 Updated: 2012-03-02 NOCHandle: NETEN3-ARIN TechHandle: NETEN3-ARIN AbuseHandle: NETEN3-ARIN Source: ARIN OrgID: NETE OrgName: NetEnterprise Inc. CanAllocate: Street: 1132 Bishop Street Street: Suite 700 City: Honolulu State/Prov: HI Country: US PostalCode: 96813 RegDate: 1998-10-06 Updated: 2017-01-28 ReferralServer: rwhois://rwhois.netenterprise.net:4321 OrgTechHandle: NETEN3-ARIN OrgAdminHandle: NETEN3-ARIN OrgAbuseHandle: NETEN3-ARIN OrgNOCHandle: NETEN3-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.