AS3549 Level 3 Parent, LLC
2620:11b:e082::/48 - LVLT-IPV6-2
V6NetHandle: NET6-2620-11B-E000-1 OrgID: LPL-141 Parent: NET6-2620-1 NetName: LVLT-IPV6-2 NetRange: 2620:11B:E000:: - 2620:11B:E0FF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 560 RegDate: 2014-08-18 Updated: 2018-02-20 Source: ARIN OrgID: LPL-141 OrgName: Level 3 Parent, LLC CanAllocate: Street: 100 CenturyLink Drive City: Monroe State/Prov: LA Country: US PostalCode: 71203 RegDate: 2018-02-06 Updated: 2018-02-22 OrgTechHandle: IPADD5-ARIN OrgAdminHandle: APL7-ARIN OrgAbuseHandle: IPADD5-ARIN Source: ARIN POCHandle: IPADD5-ARIN IsRole: Y LastName: ipaddressing FirstName: Street: 1025 Eldorado Blvd City: Broomfield State/Prov: CO Country: US PostalCode: 80021 RegDate: 2012-01-26 Updated: 2019-08-28 OfficePhone: +1-877-453-8353 Mailbox: firstname.lastname@example.org Source: ARIN POCHandle: APL7-ARIN IsRole: Y LastName: ADMIN POC LVLT FirstName: Street: 1025 Eldorado Blvd. City: Broomfield State/Prov: CO Country: US PostalCode: 80021 RegDate: 2003-01-28 Updated: 2019-01-23 OfficePhone: +1-877-453-8353 Mailbox: email@example.com Mailbox: firstname.lastname@example.org 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.