121.91.16.0/20

AS16509 · Amazon.com, Inc.

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Summary

Country	United States
Domain	amazon.com
ASN	AS16509
Registry	ARIN
ID	AMAZO-4

WHOIS Details

NetHandle:      NET-121-91-16-0-1
OrgID:          AMAZO-4
Parent:         NET-121-0-0-0-1
NetName:        AMAZO-4
NetRange:       121.91.16.0 - 121.91.31.255
NetType:        allocation
RegDate:        2025-01-13
Updated:        2025-01-13
Source:         ARIN


OrgID:          AMAZO-4
OrgName:        Amazon.com, Inc.
CanAllocate:    
Street:         Amazon Web Services, Inc.
Street:         P.O. Box 81226
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98108-1226
Comment:        For details of this service please see
Comment:        http://ec2.amazonaws.com
RegDate:        2005-09-29
Updated:        2022-09-30
OrgAdminHandle: IPMAN40-ARIN
OrgTechHandle:  ANO24-ARIN
OrgAbuseHandle: AEA8-ARIN
OrgNOCHandle:   AANO1-ARIN
OrgRoutingHandle:   ARMP-ARIN
OrgRoutingHandle:   IPROU3-ARIN
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:        2025-08-28
OfficePhone:    +1-206-555-0000
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:        2025-08-28
OfficePhone:    +1-206-555-0000
Mailbox:        trustandsafety@support.aws.com
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:        2025-08-28
OfficePhone:    +1-206-555-0000
Mailbox:        amzn-noc-contact@amazon.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:        2025-03-24
OfficePhone:    +1-703-464-1336
Mailbox:        ipmanagement@amazon.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 121.91.0.0/16

Range	ASN	Company	Num of IPs
121.91.176.0/20	AS133499	cleardocks LLC	4,096
121.91.64.0/20	AS14374	Agri-Valley Services Corporation	4,096
121.91.200.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.168.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.144.0/21	AS16509	Amazon.com, Inc.	2,048
121.91.152.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.160.0/21	AS16509	Amazon.com, Inc.	2,048
121.91.104.0/21	AS146842	China Datacom Corporation Limited	2,048
121.91.96.0/23	AS9723	iseek Communications	512
121.91.104.0/23	AS146842	CDC SAP CCEE AP CN 1 SHA	512
121.91.106.0/23	AS146842	CDC SAP CCEE AP CN 1A SHA3	512
121.91.108.0/23	AS146842	CDC SAP CCEE AP CN 1B SHA4	512
121.91.110.0/23	AS146842	CDC SAP CCEE AP CN 1 SHA	512
121.91.201.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.204.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.205.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.32.0/24	AS59257	CMPak Public IPs	256
121.91.33.0/24	AS59257	CMPak Public IPs	256
121.91.34.0/24	AS59257	CMPak Public IPs	256
121.91.35.0/24	AS59257	CMPak Public IPs	256
121.91.36.0/24	AS59257	CMPak Public IPs	256
121.91.37.0/24	AS59257	CMPak Public IPs	256
121.91.38.0/24	AS59257	CMPak Public IPs	256
121.91.39.0/24	AS59257	CMPak Public IPs	256
121.91.40.0/24	AS59257	CMPak Public IPs	256
121.91.41.0/24	AS59257	CMPak Public IPs	256
121.91.42.0/24	AS59257	CMPak Public IPs	256
121.91.43.0/24	AS59257	CMPak Public IPs	256
121.91.56.0/24	AS138423	CMPak Public IPs	256
121.91.57.0/24	AS138423	CMPak Public IPs	256
121.91.60.0/24	AS138423	CMPak Public IPs	256
121.91.61.0/24	AS138423	CMPak Public IPs	256
121.91.62.0/24	AS138423	CMPak Public IPs	256
121.91.63.0/24	AS138423	CMPak Public IPs	256
121.91.200.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.199.0/24	AS9723	iseek Communications	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
158.120.25.180	AS31898 Oracle Corporation	`0.19ms` from Ashburn, US
67.140.166.20	AS7029 Windstream Communications LLC	`7.06ms` from Ashburn, US
123.113.30.212	AS4808 China Unicom Beijing Province Network	`3.93ms` from Beijing, CN
108.34.247.244	AS701 Verizon Business	`2.40ms` from Boston, US
207.237.255.4	AS6079 RCN	`3.19ms` from Chicago, US
201.15.29.148	AS8167 V tal	`0.93ms` from Curitiba, BR
87.200.23.148	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.53ms` from Dubai, AE
84.176.197.116	AS3320 Deutsche Telekom AG	`8.96ms` from Frankfurt am Main, DE
83.236.217.52	AS20676 Plusnet GmbH	`0.72ms` from Hamburg, DE
166.117.138.132	AS16509 Amazon.com, Inc.	`0.04ms` from Lima, PE
72.109.109.148	AS6167 Verizon Business	`7.28ms` from Los Angeles, US
205.220.132.36	AS64294 Panasonic Avionics Corporation	`2.73ms` from Los Angeles, US
5.151.152.100	AS42689 Glide Student & Residential Limited	`1.45ms` from Manchester, GB
77.91.123.132	AS44477 PQ HOSTING PLUS S.R.L.	`0.50ms` from Meppel, NL
85.233.69.116	AS34887 Information Technology Center of the Republic of Tatarstan GUP	`12.26ms` from Moscow, RU
34.93.3.68	AS396982 Google LLC	`0.10ms` from Mumbai, IN
138.255.131.4	AS263972 Litoral Net	`3.01ms` from Novo Hamburgo, BR
154.20.74.100	AS852 TELUS Communications Inc.	`14.79ms` from Seattle, US
182.221.172.228	AS17858 LG POWERCOMM	`2.29ms` from Seoul, KR
112.221.153.212	AS3786 LG DACOM Corporation	`2.17ms` from Seoul, KR
125.244.32.52	AS9316 DACOM-PUBNETPLUS	`7.79ms` from Seoul, KR
60.49.104.180	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`5.56ms` from Sepang, MY
139.224.31.4	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.44ms` from Shanghai, CN
31.154.253.20	AS12400 Partner Communications Ltd.	`6.47ms` from Tel Aviv, IL
118.155.83.212	AS2516 KDDI CORPORATION	`19.70ms` from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 -m6 121.91.30.25

traceroute to 121.91.30.25 (121.91.30.25): 6 hops max, 52 byte packets

3 [AS6453] 180.87.108.200 1.542 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On September 18th 2025

What are IP address ranges?

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.

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