AS15189 VIMRO, LLC
2607:f628:1::/48 - VIMRO-V6-2607-F628-32
V6NetHandle: NET6-2607-F628-1 OrgID: VL-119 Parent: NET6-2600-1 NetName: VIMRO-V6-2607-F628-32 NetRange: 2607:F628:: - 2607:F628:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 15189 RegDate: 2008-09-02 Updated: 2015-03-17 Source: ARIN OrgID: VL-119 OrgName: VIMRO, LLC CanAllocate: Street: 12100 Sunrise Valley Dr. City: Reston State/Prov: VA Country: US PostalCode: 20191 RegDate: 2015-01-16 Updated: 2017-01-28 OrgTechHandle: VIMRO2-ARIN OrgAdminHandle: VIMRO1-ARIN OrgAbuseHandle: VIMRO-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.