V6NetHandle: NET6-2607-5B00-1 OrgID: KCA-7 Parent: NET6-2600-1 NetName: COLOSTORE NetRange: 2607:5B00:: - 2607:5B00:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12260 Comment: http://www.colostore.com RegDate: 2014-01-23 Updated: 2014-01-23 Source: ARIN OrgID: KCA-7 OrgName: Colostore.com CanAllocate: Street: 5035 Tradewinds Drive City: Vero Beach State/Prov: FL Country: US PostalCode: 32963 RegDate: 1999-05-04 Updated: 2017-07-05 ReferralServer: rwhois://rwhois.netwrx.net:4321 OrgAdminHandle: JK378-ARIN OrgTechHandle: JK378-ARIN OrgNOCHandle: JK378-ARIN OrgAbuseHandle: JK378-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.