18.172.16.0/21

AS16509 · Amazon.com, Inc.

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Summary

Country	United States
Domain	amazon.com
ASN	AS16509
Registry	ARIN
ID	AMAZON-CF

WHOIS Details

NetHandle:      NET-18-172-0-0-1
OrgID:          AMAZON-4
Parent:         NET-18-32-0-0-1
NetName:        AMAZON-CF
NetRange:       18.172.0.0 - 18.173.255.255
NetType:        reallocation
RegDate:        2022-01-21
Updated:        2022-01-21
Source:         ARIN


OrgID:          AMAZON-4
OrgName:        Amazon.com, Inc.
CanAllocate:    
Street:         1918 8th Ave
City:           SEATTLE
State/Prov:     WA
Country:        US
PostalCode:     98101-1244
RegDate:        1995-01-23
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:      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:        2024-08-29
OfficePhone:    +1-206-555-0000
Mailbox:        trustandsafety@support.aws.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:        2024-08-28
OfficePhone:    +1-206-555-0000
Mailbox:        amzn-noc-contact@amazon.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:        2024-08-28
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

Hosted domains

There are 183 domain names hosted across 129 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
18.172.21.62	trello.com	16
18.172.21.23	biteable.com	12
18.172.21.2	geru.com	11
18.172.21.63	hotmart.com	11
18.172.21.129	pixlr.com	11
18.172.21.84	webengage.com	10
18.172.21.41	tvn.pl	10
18.172.21.65	tvn.pl	10
18.172.21.58	ifttt.com	10
18.172.21.102	circleci.com	9
18.172.21.69	exxpress.at	9
18.172.21.21	ieul.jp	9
18.172.21.93	ui.com	8
18.172.21.83	86886.jp	8
18.172.21.40	brand.page	8
18.172.21.126	ifttt.com	8
18.172.21.43	pipedream.com	8
18.172.21.75	direct-book.com	8
18.172.21.52	exxpress.at	8
18.172.21.77	lunapark.com	8

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

2,047 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
18.172.16.63	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.20.216	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.21.50	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.19.169	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.22.78	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.18.46	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.17.123	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
18.172.23.193	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH

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
62.28.210.37	AS15525 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.72ms` from Braga, PT
71.237.85.69	AS7922 Comcast Cable Communications, LLC	`5.12ms` from Denver, US
54.74.65.229	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
130.248.98.101	AS44786 Adobe Systems Software Ireland Ltd	`1.81ms` from Dublin, IE
46.253.248.165	AS201035 LueneCom Kommunikationsloesungen GmbH	`1.20ms` from Hamburg, DE
157.125.239.101	AS31655 Gamma Telecom Holdings Ltd	`1.46ms` from Manchester, GB
49.82.151.5	AS4134 CHINANET-BACKBONE	`9.26ms` from Nanjing, CN
173.12.5.117	AS7922 Comcast Cable Communications, LLC	`9.18ms` from New York City, US
56.155.93.213	AS16509 Amazon.com, Inc.	`1.86ms` from Osaka, JP
208.244.251.229	AS701 Verizon Business	`0.65ms` from Philadelphia, US
72.19.44.197	AS33509 Cascade Access, LLC	`2.27ms` from Portland, US
119.167.89.197	AS4837 CHINA UNICOM China169 Backbone	`0.42ms` from Qingdao, CN
123.254.165.245	AS38103 SK Broadband Co Ltd	`1.68ms` from Seoul, KR
54.150.63.5	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
220.152.67.53	AS9824 JCOM Co., Ltd.	`10.29ms` from Tokyo, JP
46.242.252.37	AS12824 home.pl S.A.	`0.84ms` from Warsaw, PL
221.13.193.85	AS4837 CHINA UNICOM China169 Backbone	`5.05ms` from Zhengzhou, CN
208.178.194.197	AS3549 Level 3 Parent, LLC	`0.48ms` from Frankfurt am Main, DE
185.229.248.5	AS44486 synlinq.de	`0.51ms` from Frankfurt am Main, DE
182.253.47.245	AS17451 BIZNET NETWORKS	`0.46ms` from Jakarta, ID
195.135.202.5	AS44936 Data Management S.r.l.	`0.65ms` from Milan, IT
126.163.135.53	AS17676 SoftBank Corp.	`4.17ms` from Osaka, JP
147.192.205.53	AS2527 Sony Network Communications Inc.	`1.75ms` from Osaka, JP
189.86.63.149	AS4230 CLARO S.A.	`0.82ms` from Porto Alegre, BR
178.67.81.101	AS12389 PJSC Rostelecom	`1.49ms` from Saint Petersburg, RU

Traceroute

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

traceroute -a -n -q1 18.172.21.231

traceroute to 18.172.21.231 (18.172.21.231): 64 hops max, 52 byte packets

1 [AS16509] 52.47.0.13 4.551 ms

2 *

3 *

4 *

5 *

6 *

7 *

8 *

9 *

10 *

11 [] 15.230.243.1 194.481 ms

12 [AS16509] 18.172.21.231 194.453 ms

Measurement taken from

IPinfo ProbeNet in Paris, FR

On August 23rd 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.

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