18.172.238.0/23

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:        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


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

Nearby Ranges

BGP prefixes that overlap with 18.172.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
18.172.239.99	AS16509 Amazon.com, Inc.	`0.18ms` from Budapest, HU
18.172.238.105	AS16509 Amazon.com, Inc.	`0.19ms` from Budapest, HU

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
52.200.158.151	AS14618 Amazon.com, Inc.	`0.51ms` from Ashburn, US
20.21.48.167	AS8075 Microsoft Corporation	`0.22ms` from Az Za`ayin, QA
1.4.170.151	AS23969 TOT Public Company Limited	`1.31ms` from Bangkok, TH
44.232.199.231	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
59.182.38.7	AS9829 National Internet Backbone	`5.53ms` from Chennai, IN
121.205.58.167	AS4134 CHINANET-BACKBONE	`5.82ms` from Fuzhou, CN
156.234.46.135	AS138415 Yancy Limited	`0.66ms` from Hong Kong, HK
195.195.220.71	AS786 Jisc Services Limited	`3.55ms` from London, GB
90.252.189.135	AS5378 Vodafone Limited	`6.54ms` from Manchester, GB
121.229.8.103	AS4134 CHINANET-BACKBONE	`4.87ms` from Nanjing, CN
34.176.130.71	AS396982 Google LLC	`0.09ms` from Santiago, CL
190.74.9.23	AS8048 CANTV Servicios, Venezuela	`19.97ms` from Willemstad, CW
24.78.31.103	AS6327 Shaw Communications	`4.73ms` from Winnipeg, CA
74.234.131.87	AS8075 Microsoft Corporation	`0.37ms` from Amsterdam, NL
78.186.1.231	AS9121 Turk Telekomunikasyon Anonim Sirketi	`11.61ms` from Bursa, TR
197.47.44.23	AS8452 TE-AS	`4.44ms` from Cairo, EG
23.60.19.39	AS16625 Akamai Technologies, Inc.	`0.26ms` from Chicago, US
169.62.157.103	AS36351 IBM Cloud	`1.06ms` from Dallas, US
14.235.199.103	AS45899 VNPT Corp	`2.61ms` from Hanoi, VN
141.193.105.247	AS13943 Y K Communications, LTD	`4.99ms` from Houston, US
92.16.2.71	AS13285 TalkTalk Communications Limited	`8.71ms` from London, GB
67.216.210.23	AS25820 IT7 Networks Inc	`0.28ms` from Los Angeles, US
220.150.254.87	AS4685 Asahi Net	`2.07ms` from Osaka, JP
2.11.69.39	AS3215 Orange S.A.	`15.26ms` from Paris, FR
123.234.39.55	AS4837 CHINA UNICOM China169 Backbone	`2.07ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f3 18.172.238.129

traceroute to 18.172.238.129 (18.172.238.129): 64 hops max, 52 byte packets

3 [AS5483] 145.236.89.248 1.758 ms

4 *

5 *

6 *

7 [AS16509] 18.172.238.129 0.209 ms

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On March 20th 2026

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