2604:2e00::/32 - PLDI-NET
V6NetHandle: NET6-2604-2E00-1 OrgID: PIO Parent: NET6-2600-1 NetName: PLDI-NET NetRange: 2604:2E00:: - 2604:2E00:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11650 RegDate: 2010-10-26 Updated: 2013-12-10 AbuseHandle: PNA4-ARIN TechHandle: SC157-ARIN NOCHandle: PNO6-ARIN Source: ARIN OrgID: PIO OrgName: Pioneer Long Distance Inc. CanAllocate: Street: 301 Nth 5th City: Kingfisher State/Prov: OK Country: US PostalCode: 73750 Comment: ___________________________________________ Comment: For matters pertaining to abuse, harassment Comment: or spam, please contact firstname.lastname@example.org Comment: ___________________________________________ RegDate: 1998-11-04 Updated: 2017-01-28 OrgAdminHandle: SC157-ARIN OrgNOCHandle: PNO6-ARIN OrgTechHandle: PNO6-ARIN OrgAbuseHandle: PNA4-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.