V6NetHandle: NET6-2602-FFF3-1 OrgID: PDM-22 Parent: NET6-2600-1 NetName: PDM-BLNGMT-V6-A1 NetRange: 2602:FFF3:: - 2602:FFF3:FFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11512 RegDate: 2013-07-16 Updated: 2015-04-21 Source: ARIN OrgID: PDM-22 OrgName: Parsec Data Management Inc. CanAllocate: Street: 3470 Gabel Road City: Billings State/Prov: MT Country: US PostalCode: 59102 Comment: http://www.parsecdata.com RegDate: 2010-10-01 Updated: 2013-07-17 OrgNOCHandle: SUPPO1372-ARIN OrgAdminHandle: SUPPO1372-ARIN OrgTechHandle: SUPPO1372-ARIN OrgAbuseHandle: SUPPO1372-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.