AS15129 Geneseo Telephone Company
2606:8b80::/32 - GENESEO-IPV6
V6NetHandle: NET6-2606-8B80-1 OrgID: GNEO Parent: NET6-2600-1 NetName: GENESEO-IPV6 NetRange: 2606:8B80:: - 2606:8B80:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 15129 RegDate: 2015-09-28 Updated: 2015-09-28 Source: ARIN OrgID: GNEO OrgName: Geneseo Telephone Company CanAllocate: Street: 111 East First Street City: Geneseo State/Prov: IL Country: US PostalCode: 61254 RegDate: 2000-01-24 Updated: 2017-01-31 OrgTechHandle: RHA225-ARIN OrgTechHandle: JB1300-ARIN OrgAdminHandle: CMI114-ARIN OrgAbuseHandle: ABUSE1915-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.