AS701 MCI Communications Services, Inc. d/b/a Verizon Business
2620:0:b80::/48 - FERCNETWORK
V6NetHandle: NET6-2620-B80-1 OrgID: FERC Parent: NET6-2620-1 NetName: FERCNETWORK NetRange: 2620:0:B80:: - 2620:0:B80:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment RegDate: 2008-01-08 Updated: 2012-02-24 Source: ARIN OrgID: FERC OrgName: Federal Energy Regulatory Commission CanAllocate: Street: 888 First Street NE City: Washington State/Prov: DC Country: US PostalCode: 20426 RegDate: 1994-04-27 Updated: 2007-11-13 OrgTechHandle: CCH129-ARIN OrgAdminHandle: CCH129-ARIN OrgAbuseHandle: CCH129-ARIN Source: ARIN POCHandle: CCH129-ARIN IsRole: N LastName: Chung FirstName: Charles Street: 888 First Street NE City: Washington State/Prov: DC Country: US PostalCode: 20426 RegDate: 2007-11-09 Updated: 2018-11-08 OfficePhone: +1-202-502-6513 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.