Response from whois.arin.net:

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#

# start

NetRange: 3.80.0.0 - 3.95.255.255
CIDR: 3.80.0.0/12
NetName: AMAZON-IAD
NetHandle: NET-3-80-0-0-1
Parent: AT-88-Z (NET-3-0-0-0-1)
NetType: Reallocated
OriginAS: AS16509, AS14618
Organization: Amazon Data Services NoVa (ADSN-1)
RegDate: 2018-08-22
Updated: 2018-08-22
Ref: https://rdap.arin.net/registry/ip/3.80.0.0

OrgName: Amazon Data Services NoVa
OrgId: ADSN-1
Address: 13200 Woodland Park Road
City: Herndon
StateProv: VA
PostalCode: 20171
Country: US
RegDate: 2018-04-25
Updated: 2018-04-25
Ref: https://rdap.arin.net/registry/entity/ADSN-1

OrgTechHandle: IPMAN40-ARIN
OrgTechName: IP Management
OrgTechPhone: +1-206-266-4064
OrgTechEmail: ipmanagement@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPMAN40-ARIN

OrgAbuseHandle: IPMAN40-ARIN
OrgAbuseName: IP Management
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: ipmanagement@amazon.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/IPMAN40-ARIN

# end

# start

NetRange: 3.0.0.0 - 3.127.255.255
CIDR: 3.0.0.0/9
NetName: AT-88-Z
NetHandle: NET-3-0-0-0-1
Parent: NET3 (NET-3-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Amazon Technologies Inc. (AT-88-Z)
RegDate: 2017-12-20
Updated: 2018-03-30
Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref: https://rdap.arin.net/registry/ip/3.0.0.0

OrgName: Amazon Technologies Inc.
OrgId: AT-88-Z
Address: 410 Terry Ave N.
City: Seattle
StateProv: WA
PostalCode: 98109
Country: US
RegDate: 2011-12-08
Updated: 2017-01-28
Comment: All abuse reports MUST include:
Comment: * src IP
Comment: * dest IP (your IP)
Comment: * dest port
Comment: * Accurate date/timestamp and timezone of activity
Comment: * Intensity/frequency (short log extracts)
Comment: * Your contact details (phone and email) Without these we will be unable to identify the correct owner of the IP address at that point in time.
Ref: https://rdap.arin.net/registry/entity/AT-88-Z

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-266-4064
OrgNOCEmail: amzn-noc-contact@amazon.com
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN

# end

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#