AS13893 Enterprise Holdings, Inc.
2620:103:e028::/48 - EHI-NA-NET
V6NetHandle: NET6-2620-103-E000-1 OrgID: ENTERP-47 Parent: NET6-2620-1 NetName: EHI-NA-NET NetRange: 2620:103:E000:: - 2620:103:E0FF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 16711, 13893 RegDate: 2011-05-03 Updated: 2012-03-02 Source: ARIN OrgID: ENTERP-47 OrgName: Enterprise Holdings, Inc. CanAllocate: Street: 600 Corporate Park Drive City: Clayton State/Prov: MO Country: US PostalCode: 63105 RegDate: 1999-09-03 Updated: 2019-01-11 OrgTechHandle: PICKE82-ARIN OrgTechHandle: LEBAR5-ARIN OrgAdminHandle: LEBAR5-ARIN OrgAbuseHandle: LEBAR5-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.