2607:f7b8::/32 - SOX
V6NetHandle: NET6-2607-F7B8-1 OrgID: SOUTH-176 Parent: NET6-2600-1 NetName: SOX NetRange: 2607:F7B8:: - 2607:F7B8:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 10490 RegDate: 2009-02-03 Updated: 2012-03-02 NOCHandle: NETWO652-ARIN TechHandle: NETWO653-ARIN Source: ARIN OrgID: SOUTH-176 OrgName: Southern Light Rail, Inc. CanAllocate: Street: 258 4th St NW Street: Rich building City: Atlanta State/Prov: GA Country: US PostalCode: 30332 RegDate: 2008-07-24 Updated: 2017-01-28 OrgTechHandle: NETWO653-ARIN OrgAdminHandle: NETWO652-ARIN OrgAbuseHandle: GATEC-ARIN OrgNOCHandle: NETWO653-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.