51.21.0.0/16

AS16509 · Amazon.com, Inc.

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Summary

Country	Sweden
Domain	auth-tec-on-beta.space
ASN	AS16509
Registry	RIPE
ID	EC2-ARN

WHOIS Details

inetnum:        51.21.0.0 - 51.21.255.255
netname:        EC2-ARN
country:        SE
admin-c:        IM4726-RIPE
tech-c:         IM4726-RIPE
status:         LEGACY
mnt-by:         MNT-ADSI
created:        2023-08-07T15:28:56Z
last-modified:  2023-08-07T15:28:56Z
source:         RIPE
abuse-email:    email-abuse@amazon.com
abuse-c:        AR34590-RIPE
abuse-org:      ORG-ARI3-RIPE

person:         IP Man
address:        Marcel-Breuer-Strasse 12
address:        80807
address:        Munchen
address:        GERMANY
phone:          +4994178878008
nic-hdl:        IM4726-RIPE
mnt-by:         us-a100row-1-mnt
created:        2015-12-08T10:44:59Z
last-modified:  2015-12-08T10:45:00Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.158.0.0/15	AS12876	Scaleway	131,072
51.204.0.0/15	AS16509	A100 ROW Inc	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.232.0.0/15	AS16509	A100 ROW Inc	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.6.0.0/15	AS6871		131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.72.0.0/15	AS16509	A100 Row Inc	131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.226.0.0/15	AS16509	A100 Row Inc	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.206.0.0/15	AS16509	A100 Row Inc	131,072
51.248.0.0/15	AS16509	A100 ROW Inc	131,072
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.200.0.0/15	AS16509	A100 ROW Inc	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.164.0.0/15	AS16509	A100 ROW Inc	131,072
51.172.0.0/15	AS16509	A100 ROW Inc	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.166.0.0/15	AS16509	A100 Row Inc	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.202.0.0/15	AS16509	A100 Row Inc	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.125.0.0/16	AS16509	A100 ROW Inc	65,536
51.155.0.0/16	AS13037	Zen Internet Limited	65,536
51.160.0.0/16	AS16509	A100 ROW Inc	65,536
51.129.0.0/16	AS16509	A100 ROW Inc	65,536
51.148.0.0/16	AS13037	Zen Internet Limited	65,536
51.139.0.0/16	AS16509	A100 ROW Inc	65,536
51.118.0.0/16	AS16509	A100 ROW Inc	65,536
51.150.0.0/16	AS16509	A100 Row Inc	65,536

Hosted domains

There are 3,592 domain names hosted across 2,015 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.21.126.187	docendo.dk	190
51.21.71.16	monerostock.com	91
51.21.106.10	nordiccardiacimaging.org	84
51.21.111.221	automonkey.dk	38
51.21.58.86	leangbukten.no	30
51.21.2.33	bogholdervallensbaek.dk	28
51.21.238.41	prioritetgroup.com	19
51.21.60.7	sarokullavikif.se	18
51.21.122.147	grandfoods.bg	15
51.21.37.11	visionmatedemo.se	14
51.21.137.161	bdgclub248.site	14
51.21.43.27	datacloudmetrics.com	14
51.21.108.85	slakterenbrygghus.no	14
51.21.115.142	vqols.cc	13
51.21.118.252	nukud.ee	12
51.21.32.77	arbeidslivspodden.no	12
51.21.33.74	souk24.net	11
51.21.113.136	w3s.email	10
51.21.250.216	sharkyonabs.xyz	9
51.21.39.37	tokeronex.dk	7

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

11,715 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.21.242.15	AS16509 Amazon.com, Inc.	`0.15ms` from Stockholm, SE
51.21.246.117	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.219.168	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.223.85	AS16509 Amazon.com, Inc.	`0.09ms` from Stockholm, SE
51.21.247.231	AS16509 Amazon.com, Inc.	`0.10ms` from Stockholm, SE
51.21.243.6	AS16509 Amazon.com, Inc.	`0.08ms` from Stockholm, SE
51.21.228.93	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
51.21.226.118	AS16509 Amazon.com, Inc.	`0.10ms` from Stockholm, SE
51.21.244.15	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.234.83	AS16509 Amazon.com, Inc.	`0.15ms` from Stockholm, SE
51.21.254.254	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
51.21.240.25	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
51.21.229.234	AS16509 Amazon.com, Inc.	`0.13ms` from Stockholm, SE
51.21.252.193	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
51.21.213.168	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.225.124	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
51.21.253.58	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.245.17	AS16509 Amazon.com, Inc.	`0.08ms` from Stockholm, SE
51.21.255.102	AS16509 Amazon.com, Inc.	`0.13ms` from Stockholm, SE
51.21.214.126	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
51.21.231.189	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
51.21.230.184	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.220.133	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
51.21.216.187	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
51.21.222.209	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE

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
178.224.77.64	AS50266 Odido Netherlands B.V.	`2.97ms` from Amsterdam, NL
54.201.85.128	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
187.136.85.240	AS8151 UNINET	`19.13ms` from Dallas, US
79.72.22.0	AS54253 Oracle Corporation	`0.79ms` from Doha, QA
59.50.241.48	AS4134 CHINANET-BACKBONE	`0.95ms` from Haikou, CN
185.99.4.240	AS50257 JV A-Mobile Ltd.	`5.78ms` from Krasnodar, RU
94.7.223.144	AS5607 Sky UK Limited	`6.29ms` from London, GB
80.225.83.160	AS31898 Oracle Corporation	`0.17ms` from Milan, IT
150.66.25.112	AS17511 OPTAGE Inc.	`1.57ms` from Osaka, JP
126.34.143.240	AS17676 SoftBank Corp.	`3.55ms` from Osaka, JP
18.231.99.240	AS16509 Amazon.com, Inc.	`0.15ms` from Osasco, BR
3.88.255.192	AS14618 Amazon.com, Inc.	`0.62ms` from Reston, US
122.32.221.208	AS17858 LG POWERCOMM	`1.24ms` from Seoul, KR
27.35.61.80	AS9762 HYUNDAI COMMUNICATIONS NETWORK	`0.82ms` from Seoul, KR
223.111.158.176	AS56046 China Mobile communications corporation	`3.92ms` from Suzhou, CN
178.183.221.176	AS12912 T-Mobile Polska S.A.	`12.86ms` from Warsaw, PL
203.132.73.0	AS38195 Superloop	`1.17ms` from Adelaide, AU
13.81.242.112	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
23.214.248.128	AS16625 Akamai Technologies, Inc.	`0.18ms` from Ashburn, US
57.151.27.128	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
172.212.37.32	AS8075 Microsoft Corporation	`0.40ms` from Ashburn, US
93.211.215.64	AS3320 Deutsche Telekom AG	`2.01ms` from Berlin, DE
103.226.155.224	AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED	`1.42ms` from Hong Kong, HK
178.81.200.224	AS35819 Etihad Etisalat, a joint stock company	`3.91ms` from Manama, BH
114.144.173.192	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.55ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 51.21.60.41

traceroute to 51.21.60.41 (51.21.60.41): 64 hops max, 52 byte packets

1 [AS16509] 13.53.0.213 1.767 ms

2 [AS16509] 51.21.60.41 0.207 ms

Measurement taken from

IPinfo ProbeNet in Stockholm, SE

On October 30th 2025

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