AS12033 Adams TelSystems, Inc.
2605:3000::/32 - AT-NET-2605-3000
V6NetHandle: NET6-2605-3000-1 OrgID: AT-1938 Parent: NET6-2600-1 NetName: AT-NET-2605-3000 NetRange: 2605:3000:: - 2605:3000:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12033 RegDate: 2010-03-23 Updated: 2019-03-05 Source: ARIN OrgID: AT-1938 OrgName: Adams TelSystems, Inc. CanAllocate: Street: PO Box 99 City: Golden State/Prov: IL Country: US PostalCode: 62339 RegDate: 2019-01-22 Updated: 2019-03-07 OrgAbuseHandle: ADAMS1055-ARIN OrgAdminHandle: ADAMS1054-ARIN OrgNOCHandle: ADAMS1053-ARIN OrgTechHandle: ADAMS1053-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.