V6NetHandle: NET6-2607-F1D0-1 OrgID: XAND Parent: NET6-2600-1 NetName: XAND-BLK-3 NetRange: 2607:F1D0:: - 2607:F1D0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11383 RegDate: 2007-10-19 Updated: 2012-03-02 NOCHandle: ZX8-ARIN TechHandle: ZX8-ARIN AbuseHandle: ZX8-ARIN Source: ARIN OrgID: XAND OrgName: Xand Corporation CanAllocate: Street: 11 Skyline Drive City: Hawthorne State/Prov: NY Country: US PostalCode: 10532 RegDate: 1970-01-01 Updated: 2018-01-03 ReferralServer: rwhois://rwhois.tierpoint.net:4321 OrgNOCHandle: TIERP3-ARIN OrgAbuseHandle: TIERP2-ARIN OrgTechHandle: ACA26-ARIN OrgAdminHandle: CHEEK1-ARIN OrgTechHandle: CHEEK1-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.