23.20.0.0/15

NetHandle:      NET-23-20-0-0-2
OrgID:          ADSN-1
Parent:         NET-23-20-0-0-1
NetName:        AMAZON-IAD
NetRange:       23.20.0.0 - 23.23.255.255
NetType:        reallocation
RegDate:        2020-04-16
Updated:        2020-04-16
Source:         ARIN


OrgID:          ADSN-1
OrgName:        Amazon Data Services NoVa
CanAllocate:    
Street:         13200 Woodland Park Road
City:           Herndon
State/Prov:     VA
Country:        US
PostalCode:     20171
RegDate:        2018-04-25
Updated:        2019-08-02
OrgAbuseHandle: AEA8-ARIN
OrgAdminHandle: IPMAN40-ARIN
OrgNOCHandle:   AANO1-ARIN
OrgTechHandle:  ANO24-ARIN
Source:         ARIN


POCHandle:      AANO1-ARIN
IsRole:         Y
LastName:       Amazon AWS Network Operations
FirstName:      
Street:         410 Terry Ave N
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98109
RegDate:        2010-03-04
Updated:        2020-06-03
OfficePhone:    +1-206-266-4064
Mailbox:        amzn-noc-contact@amazon.com
Source:         ARIN


POCHandle:      AEA8-ARIN
IsRole:         Y
LastName:       Amazon EC2 Abuse
FirstName:      
Street:         Amazon Web Services Elastic Compute Cloud, EC2
Street:         410 Terry Avenue North
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98109-5210
RegDate:        2008-03-24
Updated:        2019-06-18
OfficePhone:    +1-206-266-4064
Mailbox:        abuse@amazonaws.com
Source:         ARIN


POCHandle:      IPMAN40-ARIN
IsRole:         Y
LastName:       IP Management
FirstName:      
Street:         1918 8th Ave
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98109
RegDate:        2013-11-12
Updated:        2020-04-01
OfficePhone:    +1-206-266-4064
Mailbox:        ipmanagement@amazon.com
Source:         ARIN


POCHandle:      ANO24-ARIN
IsRole:         Y
LastName:       Amazon EC2 Network Operations
FirstName:      
Street:         PO BOX 81226
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98108-1226
RegDate:        2005-09-19
Updated:        2020-02-20
OfficePhone:    +1-206-266-4064
Mailbox:        amzn-noc-contact@amazon.com
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.