2604:ba00::/33 - ACE-IPV6-NETWORK-1
V6NetHandle: NET6-2604-BA00-1 OrgID: ADC-96 Parent: NET6-2600-1 NetName: ACE-IPV6-NETWORK-1 NetRange: 2604:BA00:: - 2604:BA00:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11798 RegDate: 2010-11-23 Updated: 2012-03-02 TechHandle: RAYMO4-ARIN NOCHandle: RAYMO4-ARIN AbuseHandle: RAYMO4-ARIN Source: ARIN OrgID: ADC-96 OrgName: Ace Data Centers, Inc. CanAllocate: Street: 727 North 1550 East Street: Ste 400 City: Orem State/Prov: UT Country: US PostalCode: 84097 RegDate: 2010-11-02 Updated: 2018-07-06 ReferralServer: rwhois://rwhois.acedatacenter.com:4321 OrgTechHandle: ACEAD-ARIN OrgAbuseHandle: ACEAD-ARIN OrgAdminHandle: ACEAD-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.