V6NetHandle: NET6-2610-170-1 OrgID: BRAGG Parent: NET6-2610-1 NetName: EASTLINK-V6-BLK1 NetRange: 2610:170:: - 2610:170:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11260 Comment: EastLink is an HFC and Fibre Internet Provider in Atlantic Canada RegDate: 2007-03-12 Updated: 2012-03-02 TechHandle: ATS22-ARIN AbuseHandle: INOC13-ARIN NOCHandle: INOC13-ARIN Source: ARIN OrgID: BRAGG OrgName: EastLink CanAllocate: Street: 6080 Young Street Street: Suite 801, PO Box 8660, Station A City: Halifax State/Prov: NS Country: CA PostalCode: B3K-5M3 Comment: EastLink High Speed Internet RegDate: 2007-01-17 Updated: 2017-01-28 OrgAdminHandle: AAS49-ARIN OrgTechHandle: ATS22-ARIN OrgAbuseHandle: AAS50-ARIN OrgNOCHandle: ANS2-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.