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:      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:      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:      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
121.91.64.0/20	AS14374	Agri-Valley Services Corporation	4,096
121.91.200.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.152.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.168.0/21	AS136907	HUAWEI INTERNATIONAL PTE. LTD.	2,048
121.91.104.0/21	AS146842	China Datacom Corporation Limited	2,048
121.91.144.0/21	AS16509	Amazon.com, Inc.	2,048
121.91.160.0/21	AS16509	Amazon.com, Inc.	2,048
121.91.110.0/23	AS146842	CDC SAP CCEE AP CN 1 SHA	512
121.91.104.0/23	AS146842	CDC SAP CCEE AP CN 1 SHA	512
121.91.96.0/23	AS9723	iseek Communications	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
121.91.201.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.47.0/24	AS59257	CMPak Public IPs	256
121.91.199.0/24	AS9723	iseek Communications	256
121.91.200.0/24	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
121.91.46.0/24	AS59257	CMPak Public IPs	256
121.91.204.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.205.0/24	AS136907	Huawei Cloud Thailand POP	256
121.91.57.0/24	AS138423	CMPak Public IPs	256
121.91.56.0/24	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

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
72.84.220.132	AS701 Verizon Business	`4.76ms` from Ashburn, US
123.165.156.84	AS4134 CHINANET-BACKBONE	`6.74ms` from Harbin, CN
67.206.145.20	AS26857 TrustComm, Inc.	`3.12ms` from Houston, US
188.28.75.212	AS206067 Hutchison 3G UK Limited	`8.18ms` from London, GB
47.151.179.116	AS5650 Frontier Communications of America, Inc.	`4.16ms` from Los Angeles, US
73.49.50.196	AS7922 Comcast Cable Communications, LLC	`4.51ms` from Miami, US
167.206.60.180	AS6128 Cablevision Systems Corp.	`1.63ms` from New York City, US
85.233.69.116	AS34887 Information Technology Center of the Republic of Tatarstan GUP	`7.69ms` from Samara, RU
120.79.147.132	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.57ms` from Shenzhen, CN
130.237.3.148	AS1653 Vetenskapsradet / SUNET	`0.51ms` from Stockholm, SE
217.24.204.68	AS21263 TeleData GmbH	`3.08ms` from Zug, CH
213.118.42.20	AS6848 Telenet BV	`7.00ms` from Brussels, BE
104.23.247.4	AS13335 Cloudflare, Inc.	`0.54ms` from Miami, US
50.74.41.68	AS12271 Charter Communications Inc	`1.10ms` from New York City, US
187.170.236.100	AS8151 UNINET	`3.84ms` from Santiago de Queretaro, MX
70.67.58.148	AS6327 Shaw Communications	`5.60ms` from Seattle, US
180.23.136.4	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.47ms` from Tokyo, JP
220.202.20.116	AS4837 CHINA UNICOM China169 Backbone	`9.46ms` from Zhengzhou, CN
98.87.8.180	AS14618 Amazon.com, Inc.	`0.94ms` from Ashburn, US
158.120.221.4	AS398156 ACE Fiber	`11.93ms` from Atlanta, US
71.218.163.116	AS209 CenturyLink Communications, LLC	`1.91ms` from Denver, US
91.4.8.180	AS3320 Deutsche Telekom AG	`2.07ms` from Duesseldorf, DE
71.193.40.4	AS7922 Comcast Cable Communications, LLC	`7.24ms` from Fremont, US
81.168.64.100	AS8851 GCI Network Solutions Limited	`6.00ms` from London, GB
205.220.132.36	AS64294 Panasonic Avionics Corporation	`2.72ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f2 -m7 121.91.18.179

traceroute to 121.91.18.179 (121.91.18.179): 7 hops max, 52 byte packets

2 [AS50837] 208.111.57.3 0.089 ms

3 *

4 [AS40300] 206.197.210.209 0.404 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Honolulu, US

On March 13th 2026

What are IP address ranges?

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