AS11590 Cumberland Technologies International
2607:f620::/32 - CTI-IPV6-NET-1
V6NetHandle: NET6-2607-F620-1 OrgID: CTI Parent: NET6-2600-1 NetName: CTI-IPV6-NET-1 NetRange: 2607:F620:: - 2607:F620:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11590 RegDate: 2008-08-25 Updated: 2012-03-02 NOCHandle: TECHN84-ARIN TechHandle: TECHN84-ARIN AbuseHandle: ABUSE387-ARIN Source: ARIN OrgID: CTI OrgName: Cumberland Technologies International CanAllocate: Street: 5170 E Trindle RD City: Mechanicsburg State/Prov: PA Country: US PostalCode: 17050 RegDate: 1995-03-24 Updated: 2015-08-24 OrgTechHandle: TECHN84-ARIN OrgAbuseHandle: ABUSE387-ARIN OrgAdminHandle: ADMIN222-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.