V6NetHandle: NET6-2605-3000-1 OrgID: ADNW Parent: NET6-2600-1 NetName: ADNW-NET NetRange: 2605:3000:: - 2605:3000:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12033 RegDate: 2010-03-23 Updated: 2012-03-02 NOCHandle: IA66-ARIN AbuseHandle: IA66-ARIN TechHandle: IA66-ARIN Source: ARIN OrgID: ADNW OrgName: Adams NetWorks, Inc. CanAllocate: Street: PO Box 99 City: Golden State/Prov: IL Country: US PostalCode: 62339 RegDate: 1998-12-03 Updated: 2017-01-28 OrgAbuseHandle: IA66-ARIN OrgAdminHandle: IA66-ARIN OrgNOCHandle: IA66-ARIN OrgTechHandle: IA66-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.