AS209 CenturyLink Communications, LLC
2602:ffa2::/36 - SNOWCREST
V6NetHandle: NET6-2602-FFA2-1 OrgID: SNOWC-2 Parent: NET6-2600-1 NetName: SNOWCREST NetRange: 2602:FFA2:: - 2602:FFA2:FFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation Comment: http://www.snowcrest.net RegDate: 2014-10-06 Updated: 2014-10-06 Source: ARIN OrgID: SNOWC-2 OrgName: SnowCrest, Inc. CanAllocate: Street: P.O. Box 1379 City: Mount Shasta State/Prov: CA Country: US PostalCode: 96067 RegDate: 2011-07-06 Updated: 2017-01-28 OrgTechHandle: PLE94-ARIN OrgNOCHandle: PLE94-ARIN OrgAdminHandle: PLE94-ARIN OrgAbuseHandle: PLE94-ARIN Source: ARIN POCHandle: PLE94-ARIN IsRole: N LastName: Engdahl FirstName: Philip Street: P.O. Box 1379 City: Mount Shasta State/Prov: CA Country: US PostalCode: 96067 RegDate: 2011-07-05 Updated: 2019-08-11 OfficePhone: +1-530-926-8830 Mailbox: firstname.lastname@example.org 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.