AS20109 DC09, LLC.
2620:105:3001::/48 - DL-17
V6NetHandle: NET6-2620-105-3000-1 OrgID: DL-17 Parent: NET6-2620-1 NetName: DL-17 NetRange: 2620:105:3000:: - 2620:105:300F:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment RegDate: 2011-06-23 Updated: 2012-03-02 Source: ARIN OrgID: DL-17 OrgName: DC09, LLC. CanAllocate: Street: 55 M Street SE Street: 3rd floor City: Washington State/Prov: DC Country: US PostalCode: 20003 RegDate: 2011-05-03 Updated: 2011-06-10 OrgTechHandle: CAINK-ARIN OrgAdminHandle: CAINK-ARIN OrgAbuseHandle: CAINK-ARIN Source: ARIN POCHandle: CAINK-ARIN IsRole: N LastName: Cainkar FirstName: Paul Street: 1050 W. River st. City: Boise State/Prov: ID Country: US PostalCode: 83702 RegDate: 2011-05-02 Updated: 2014-11-12 OfficePhone: +1-678-473-7250 Mailbox: email@example.com 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.