51.116.0.0/16

AS8075 · Microsoft Corporation

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Summary

Country	United Kingdom
Domain	microsoft.com
ASN	AS8075
Registry	RIPE
ID	MICROSOFT

WHOIS Details

inetnum:        51.116.0.0 - 51.116.255.255
org:            ORG-MA42-RIPE
netname:        MICROSOFT
descr:          Microsoft Limited UK
country:        GB
admin-c:        DH5439-RIPE
tech-c:         MRPA3-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         MICROSOFT-MAINT
created:        2015-05-21T16:59:44Z
last-modified:  2016-07-25T09:38:58Z
source:         RIPE
abuse-email:    abuse@microsoft.com
abuse-c:        MAC274-RIPE
abuse-org:      ORG-MA42-RIPE

organisation:   ORG-MA42-RIPE
org-name:       Microsoft Limited
country:        GB
org-type:       LIR
descr:          Microsoft Corporation AS8075
descr:          To report suspected security issues specific to
descr:          traffic emanating from Microsoft online services,
descr:          including the distribution of malicious content
descr:          or other illicit or illegal material through a
descr:          Microsoft online service, please submit reports
descr:          to:
descr:          * https://cert.microsoft.com
descr:          For SPAM and other abuse issues, such as Microsoft
descr:          Accounts, please contact:
descr:          * abuse@microsoft.com
descr:          To report security vulnerabilities in Microsoft
descr:          products and services, please contact:
descr:          * secure@microsoft.com
descr:          For legal and law enforcement-related requests,
descr:          please contact:
descr:          * msndcc@microsoft.com
descr:          For routing, peering or DNS issues, please
descr:          contact:
descr:          * IOC@microsoft.com
address:        One Microsoft Way
address:        WA 98052
address:        Redmond
address:        UNITED STATES
phone:          +1 425 882 8080
fax-no:         +1 425 936 7329
e-mail:         iphostmaster@microsoft.com
abuse-c:        MAC274-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MICROSOFT-MAINT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MICROSOFT-MAINT
created:        2004-04-17T12:18:10Z
last-modified:  2022-03-08T18:20:31Z
source:         RIPE

role:           Microsoft Routing, Peering, and DNS
address:        One Microsoft Way
address:        Redmond, WA 98052
e-mail:         ioc@microsoft.com
nic-hdl:        MRPA3-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:25:24Z
last-modified:  2014-08-26T16:25:24Z
source:         RIPE

person:         Divya Quamara
address:        One Microsoft Way
address:        Redmond, WA 98052
phone:          +1-425-882-8080
nic-hdl:        DH5439-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:24:14Z
last-modified:  2016-02-19T07:09:41Z
source:         RIPE

route:          51.116.0.0/16
origin:         AS8075
descr:          Microsoft
notify:         radb@microsoft.com
mnt-by:         MICROSOFT-MAINT
created:        2020-07-22T15:00:20Z
last-modified:  2020-07-22T15:00:20Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.6.0.0/15	AS6871		131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.158.0.0/15	AS12876	Scaleway	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.172.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.232.0.0/15	AS16509	A100 ROW Inc	131,072
51.248.0.0/15	AS16509	A100 ROW Inc	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.188.0.0/15	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
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.20.0.0/16	AS16509	A100 ROW Inc	65,536
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
51.150.0.0/16	AS16509	A100 Row Inc	65,536
51.112.0.0/16	AS16509	A100 ROW Inc	65,536
51.110.0.0/16	AS16509	A100 Row Inc	65,536
51.21.0.0/16	AS16509	A100 ROW Inc	65,536
51.108.0.0/16	AS16509	A100 Row Inc	65,536
51.91.0.0/16	AS16276	OVH SAS	65,536
51.121.0.0/16	AS16509	A100 ROW Inc	65,536
51.118.0.0/16	AS16509	A100 ROW Inc	65,536
51.89.0.0/16	AS16276	OVH SAS	65,536

Hosted domains

There are 5,807 domain names hosted across 329 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.116.100.82	orthopaedisches-zentrum-ulm.de	874
51.116.145.35	boersenmedien.de	585
51.116.145.32	rewatchables.com	578
51.116.145.33	finants.ro	482
51.116.145.38	russelleurope.com	423
51.116.145.37	boerse-online.de	420
51.116.145.34	heel.com	387
51.116.154.224	europersonal.com	276
51.116.97.225	alpenverein.de	181
51.116.145.36	forsvaret.dk	177
51.116.114.43	allfoye.com	114
51.116.176.235	rational-online.it	107
51.116.99.197	konimmkan.com	66
51.116.237.107	xn--brstler-b1a.de	55
51.116.127.237	idealhc.org	55
51.116.184.185	tradingpc.ch	54
51.116.118.26	pei.it	37
51.116.227.89	vgem-gemuenden.de	37
51.116.183.186	dirittodiscrivereamano.org	36
51.116.96.94	qm-demand.de	27

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

4,247 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.116.57.32	AS8075 Microsoft Corporation	`1.21ms` from Berlin, DE
51.116.82.214	AS8075 Microsoft Corporation	`1.06ms` from Berlin, DE
51.116.49.136	AS8075 Microsoft Corporation	`1.44ms` from Berlin, DE
51.116.3.115	AS8075 Microsoft Corporation	`1.03ms` from Berlin, DE
51.116.5.3	AS8075 Microsoft Corporation	`1.21ms` from Berlin, DE
51.116.234.56	AS8075 Microsoft Corporation	`0.27ms` from Frankfurt am Main, DE
51.116.197.238	AS8075 Microsoft Corporation	`0.37ms` from Frankfurt am Main, DE
51.116.183.76	AS8075 Microsoft Corporation	`0.36ms` from Frankfurt am Main, DE
51.116.131.121	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
51.116.229.67	AS8075 Microsoft Corporation	`0.31ms` from Frankfurt am Main, DE
51.116.152.108	AS8075 Microsoft Corporation	`0.84ms` from Frankfurt am Main, DE
51.116.169.66	AS8075 Microsoft Corporation	`0.35ms` from Frankfurt am Main, DE
51.116.214.214	AS8075 Microsoft Corporation	`1.03ms` from Berlin, DE
51.116.213.60	AS8075 Microsoft Corporation	`1.04ms` from Berlin, DE
51.116.223.210	AS8075 Microsoft Corporation	`1.00ms` from Berlin, DE
51.116.66.65	AS8075 Microsoft Corporation	`2.13ms` from Berlin, DE
51.116.186.172	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
51.116.175.151	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
51.116.250.157	AS8075 Microsoft Corporation	`0.88ms` from Frankfurt am Main, DE
51.116.238.224	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.125.212	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.178.194	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.115.5	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.253.168	AS8075 Microsoft Corporation	`0.88ms` from Frankfurt am Main, DE
51.116.145.196	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE

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
171.7.107.128	AS45758 Triple T Broadband Public Company Limited	`2.37ms` from Bangkok, TH
39.106.163.240	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.41ms` from Beijing, CN
54.69.189.176	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
12.49.204.128	AS7018 AT&T Enterprises, LLC	`12.88ms` from Chicago, US
95.12.71.80	AS47331 TTNet A.S.	`10.87ms` from Denizli, TR
69.163.195.16	AS26347 New Dream Network, LLC	`0.30ms` from Hillsboro, US
92.16.108.112	AS13285 TalkTalk Communications Limited	`4.47ms` from London, GB
94.174.72.208	AS5089 Virgin Media Limited	`10.27ms` from London, GB
94.84.183.32	AS3269 Telecom Italia S.p.A.	`4.64ms` from Milan, IT
114.69.139.16	AS9614 Oita Cable Telecom Co,ltd.	`11.29ms` from Osaka, JP
184.72.249.128	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
175.236.42.160	AS4766 Korea Telecom	`1.88ms` from Seoul, KR
80.51.2.80	AS5617 Orange Polska Spolka Akcyjna	`2.31ms` from Warsaw, PL
129.153.165.96	AS31898 Oracle Corporation	`0.37ms` from Ashburn, US
23.208.206.16	AS20940 Akamai International B.V.	`0.74ms` from Chicago, US
75.186.114.128	AS10796 Charter Communications Inc	`10.49ms` from Columbus, US
65.24.149.160	AS10796 Charter Communications Inc	`9.06ms` from Columbus, US
24.243.6.240	AS11427 Charter Communications Inc	`10.68ms` from Dallas, US
45.228.130.0	AS267064 Valdine Pereira de Amorim	`11.25ms` from Fortaleza, BR
217.125.87.64	AS3352 TELEFONICA DE ESPANA S.A.U.	`14.72ms` from Madrid, ES
72.88.169.224	AS701 Verizon Business	`2.33ms` from New York City, US
51.44.189.224	AS16509 Amazon.com, Inc.	`0.14ms` from Paris, FR
107.162.239.80	AS55002 F5, Inc.	`0.30ms` from San Jose, US
202.159.165.112	AS7545 TPG Telecom Limited	`1.13ms` from Sydney, AU
54.70.89.240	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US

Traceroute

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

traceroute -a -n -q1 -f3 51.116.54.76

traceroute to 51.116.54.76 (51.116.54.76): 64 hops max, 52 byte packets

3 [AS969] 102.130.51.116 0.155 ms

4 [AS969] 199.119.64.202 0.256 ms

5 [] 193.178.185.104 3.908 ms

6 [AS8075] 51.10.26.246 3.348 ms

7 *

8 *

9 *

10 *

11 [AS8075] 51.116.54.76 1.361 ms

Measurement taken from

IPinfo ProbeNet in Berlin, DE

On November 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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