18.238.104.0/21

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-18-238-0-0-1
OrgID:          AMAZON-4
Parent:         NET-18-32-0-0-1
NetName:        AMAZON-CF
NetRange:       18.238.0.0 - 18.239.255.255
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:      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


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:      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

Hosted domains

There are 1,232 domain names hosted across 128 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
18.238.109.42	upgrad.com	47
18.238.109.50	armut.com	46
18.238.109.8	nos.nl	45
18.238.109.33	pitch.com	45
18.238.109.71	medlineplus.gov	44
18.238.109.68	rehome-navi.com	43
18.238.109.96	webengage.com	42
18.238.109.60	cyberscoop.com	40
18.238.109.97	cdn-ds.com	40
18.238.109.86	kahoot.com	39
18.238.109.52	huggingface.co	39
18.238.109.40	docsend.com	38
18.238.109.117	blubrry.com	37
18.238.109.81	interexy.com	37
18.238.109.17	yle.fi	37
18.238.109.25	trello.com	37
18.238.109.21	ottvideostreaming.com	36
18.238.109.48	komonews.com	36
18.238.109.107	docs.rs	36
18.238.109.78	rehome-navi.com	35

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
18.238.105.28	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.106.191	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.108.94	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.111.152	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.110.122	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.109.87	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.107.224	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US
18.238.104.60	AS16509 Amazon.com, Inc.	`0.56ms` from Phoenix, US

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
144.228.128.21	AS174 Cogent Communications	`0.53ms` from Ashburn, US
97.82.157.5	AS20115 Charter Communications LLC	`10.19ms` from Atlanta, US
167.173.44.37	AS36772 Hearst-Argyle Television, Inc.	`7.18ms` from Boston, US
197.147.112.85	AS36884 Wana Corporate	`8.75ms` from Casablanca, MA
97.149.231.149	AS6167 Verizon Business	`9.86ms` from Chicago, US
109.185.247.165	AS8926 Moldtelecom SA	`5.09ms` from Chisinau, MD
76.181.209.165	AS10796 Charter Communications Inc	`16.04ms` from Columbus, US
177.220.152.37	AS14868 Ligga Telecomunicações S.A.	`0.23ms` from Curitiba, BR
103.9.4.5	AS131360 NATIONAL PAYMENT CORPORATION OF VIET NAM	`18.45ms` from Hong Kong, HK
34.150.110.197	AS396982 Google LLC	`0.11ms` from Hong Kong, HK
77.76.108.85	AS8607 Digital Space Group Limited	`3.97ms` from London, GB
148.3.76.69	AS12430 VODAFONE ESPANA S.A.U.	`15.91ms` from Madrid, ES
34.8.251.213	AS396982 Google LLC	`0.08ms` from Melbourne, AU
69.203.87.117	AS12271 Charter Communications Inc	`3.25ms` from New York City, US
80.13.136.37	AS3215 Orange S.A.	`2.20ms` from Paris, FR
119.181.169.117	AS4837 CHINA UNICOM China169 Backbone	`4.68ms` from Qingdao, CN
201.44.39.117	AS4230 CLARO S.A.	`0.86ms` from Rio de Janeiro, BR
61.249.138.133	AS4670 Shinbiro	`1.51ms` from Seoul, KR
119.209.110.213	AS4766 Korea Telecom	`1.66ms` from Seoul, KR
192.114.146.149	AS8551 Bezeq International Ltd.	`0.38ms` from Tel Aviv, IL
72.38.172.149	AS7992 Cogeco Connexion Inc.	`7.58ms` from Toronto, CA
216.226.212.37	AS12684 SES ASTRA S.A.	`4.63ms` from Ashburn, US
217.73.16.5	AS29405 VNET a.s.	`0.38ms` from Bratislava, SK
91.46.206.53	AS3320 Deutsche Telekom AG	`4.84ms` from Frankfurt am Main, DE
5.39.47.85	AS16276 OVH SAS	`0.09ms` from Gravelines, FR

Traceroute

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

traceroute -a -n -q1 18.238.111.185

traceroute to 18.238.111.185 (18.238.111.185): 64 hops max, 52 byte packets

1 [AS136258] 185.126.236.1 0.703 ms

2 [AS6204] 103.246.249.72 0.362 ms

3 [AS16509] 18.238.111.185 150.757 ms

Measurement taken from

IPinfo ProbeNet in Vienna, AT

On August 22nd 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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