AS14382 Education Service Center
2620:8b:c000::/48 - ESC13-V6
V6NetHandle: NET6-2620-8B-C000-1 OrgID: ESC-3 Parent: NET6-2620-1 NetName: ESC13-V6 NetRange: 2620:8B:C000:: - 2620:8B:C000:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 14382 RegDate: 2014-08-19 Updated: 2014-08-19 Source: ARIN OrgID: ESC-3 OrgName: Education Service Center CanAllocate: Street: 5701 Springdale Road City: Austin State/Prov: TX Country: US PostalCode: 78723 RegDate: 1993-03-19 Updated: 2011-09-24 OrgTechHandle: TECHN567-ARIN OrgAdminHandle: ADMIN1084-ARIN OrgAbuseHandle: TECHN567-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.