V6NetHandle: NET6-2605-D800-1 OrgID: PNTS Parent: NET6-2600-1 NetName: PTSIV6 NetRange: 2605:D800:: - 2605:D800:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11067 RegDate: 2010-05-10 Updated: 2012-02-24 AbuseHandle: PTSIC-ARIN NOCHandle: PTSIC-ARIN TechHandle: PTSIC-ARIN Source: ARIN OrgID: PNTS OrgName: Panhandle Telecommunications Systems, INC. CanAllocate: Street: PO Box 1188 City: Guymon State/Prov: OK Country: US PostalCode: 73942 RegDate: 1997-05-02 Updated: 2017-01-28 OrgAbuseHandle: PTSIC-ARIN OrgAdminHandle: PTSIC-ARIN OrgTechHandle: PTSIC-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.