V6NetHandle: NET6-2605-2180-1 OrgID: EC-149 Parent: NET6-2600-1 NetName: EVONIK-32 NetRange: 2605:2180:: - 2605:2180:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation RegDate: 2013-11-19 Updated: 2013-11-19 Source: ARIN OrgID: EC-149 OrgName: Evonik Corporation CanAllocate: Street: 299 Jefferson Road City: Parsippany State/Prov: NJ Country: US PostalCode: 07054 RegDate: 2013-07-19 Updated: 2018-06-22 OrgAbuseHandle: STEIN222-ARIN OrgNOCHandle: JUSSE-ARIN OrgNOCHandle: ALB13-ARIN OrgAdminHandle: ALB13-ARIN OrgAbuseHandle: ALB13-ARIN OrgNOCHandle: STEIN222-ARIN OrgNOCHandle: ALTAN4-ARIN OrgTechHandle: STEIN222-ARIN OrgTechHandle: ALTAN4-ARIN OrgTechHandle: JUSSE-ARIN OrgTechHandle: ALB13-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.