AS13750 Transaction Network Services, Inc.
2607:fef8:ffe0::/43 - CEQUINT
V6NetHandle: NET6-2607-FEF8-FFE0-1 OrgID: CEQUI-1 Parent: NET6-2607-FEF8-1 NetName: CEQUINT NetRange: 2607:FEF8:FFE0:: - 2607:FEF8:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: reassignment OriginAS: 6636, 19271, 2914, 18598, 21875 RegDate: 2012-08-14 Updated: 2012-08-14 Source: ARIN OrgID: CEQUI-1 OrgName: Cequint, Inc CanAllocate: Street: 1011 Western Street: Suite 800 City: Seattle State/Prov: WA Country: US PostalCode: 98104 RegDate: 2012-04-12 Updated: 2014-06-12 OrgTechHandle: WHEEL5-ARIN OrgTechHandle: OPERA386-ARIN OrgNOCHandle: OPERA386-ARIN OrgAdminHandle: OPERA386-ARIN OrgAbuseHandle: OPERA386-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.