V6NetHandle: NET6-2620-108-9000-1 OrgID: SAFC-1 Parent: NET6-2620-1 NetName: SECURITIES-AMERICA-IPV6 NetRange: 2620:108:9000:: - 2620:108:900F:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 12159 Comment: Securities offered through Securities America Inc., member FINRA/SIPC. Advisory Services offered through Securities America Advisors, Inc., An SEC Registered Investment Advisor. RegDate: 2011-11-08 Updated: 2012-03-02 Source: ARIN OrgID: SAFC-1 OrgName: Securities America Financial Corporation CanAllocate: Street: 6801 Pine Street Street: Bldg 3-C City: Omaha State/Prov: NE Country: US PostalCode: 68106 RegDate: 2007-03-30 Updated: 2011-09-24 OrgAbuseHandle: RLJ2-ARIN OrgTechHandle: RLJ2-ARIN OrgAdminHandle: RLJ2-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.