AS16509 Amazon.com, Inc.
220.127.116.11/21 - AWSEMAIL-Z
NetHandle: NET-54-240-0-0-2 OrgID: AMAZO-22 Parent: NET-54-240-0-0-1 NetName: AWSEMAIL-Z NetRange: 18.104.22.168 - 22.214.171.124 NetType: reallocation OriginAS: 16509 RegDate: 2012-01-03 Updated: 2012-01-03 Source: ARIN OrgID: AMAZO-22 OrgName: Amazon Web Services, Inc. CanAllocate: Street: Amazon Web Services Street: 1200 12th Avenue South City: Seattle State/Prov: WA Country: US PostalCode: 98144 RegDate: 2010-03-08 Updated: 2018-02-09 OrgAdminHandle: IPMAN40-ARIN OrgTechHandle: ANO24-ARIN OrgNOCHandle: AANO1-ARIN OrgAbuseHandle: ASA152-ARIN Source: ARIN
IP address subranges within this IP range
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.