AS3549 Level 3 Parent, LLC
2620:7e:30e0::/48 - BPR-OF-TN-NET
V6NetHandle: NET6-2620-7E-30E0-1 OrgID: BPRSCT Parent: NET6-2620-1 NetName: BPR-OF-TN-NET NetRange: 2620:7E:30E0:: - 2620:7E:30E0:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment RegDate: 2016-05-24 Updated: 2016-05-24 Source: ARIN OrgID: BPRSCT OrgName: Board of Professional Responsibility of the Supreme Court of Tennessee CanAllocate: Street: 10 Cadillac Dr, Suite 220 City: Brentwood State/Prov: TN Country: US PostalCode: 37027 RegDate: 2015-09-10 Updated: 2015-09-10 OrgTechHandle: ADMIN5878-ARIN OrgNOCHandle: ADMIN5878-ARIN OrgAdminHandle: ADMIN5878-ARIN OrgAbuseHandle: ADMIN5878-ARIN Source: ARIN POCHandle: ADMIN5878-ARIN IsRole: N LastName: Administrator FirstName: System Street: 10 Cadillac Dr, Suite 220 City: Brentwood State/Prov: TN Country: US PostalCode: 37027 RegDate: 2015-09-08 Updated: 2018-09-07 OfficePhone: +1-615-695-0950 OfficePhone: +1-615-361-7500 Mailbox: email@example.com Mailbox: firstname.lastname@example.org 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.