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

4,235 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.116.50.201	AS8075 Microsoft Corporation	`1.11ms` from Berlin, DE
51.116.78.225	AS8075 Microsoft Corporation	`1.05ms` from Berlin, DE
51.116.63.160	AS8075 Microsoft Corporation	`1.09ms` from Berlin, DE
51.116.25.122	AS8075 Microsoft Corporation	`1.00ms` from Berlin, DE
51.116.81.251	AS8075 Microsoft Corporation	`1.22ms` from Berlin, DE
51.116.103.138	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.141.33	AS8075 Microsoft Corporation	`0.33ms` from Frankfurt am Main, DE
51.116.131.171	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.2.237	AS8075 Microsoft Corporation	`1.05ms` from Berlin, DE
51.116.219.80	AS8075 Microsoft Corporation	`1.21ms` from Berlin, DE
51.116.115.246	AS8075 Microsoft Corporation	`0.27ms` from Frankfurt am Main, DE
51.116.251.190	AS8075 Microsoft Corporation	`0.36ms` from Frankfurt am Main, DE
51.116.54.65	AS8075 Microsoft Corporation	`1.28ms` from Berlin, DE
51.116.75.94	AS8075 Microsoft Corporation	`1.08ms` from Berlin, DE
51.116.80.233	AS8075 Microsoft Corporation	`0.99ms` from Berlin, DE
51.116.66.65	AS8075 Microsoft Corporation	`1.87ms` from Berlin, DE
51.116.142.162	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.241.97	AS8075 Microsoft Corporation	`0.71ms` from Frankfurt am Main, DE
51.116.223.178	AS8075 Microsoft Corporation	`0.99ms` from Berlin, DE
51.116.99.224	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
51.116.100.17	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.49.136	AS8075 Microsoft Corporation	`1.42ms` from Berlin, DE
51.116.58.128	AS8075 Microsoft Corporation	`1.02ms` from Berlin, DE
51.116.190.247	AS8075 Microsoft Corporation	`0.31ms` from Frankfurt am Main, DE
51.116.119.185	AS8075 Microsoft Corporation	`0.30ms` 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
67.222.147.112	AS30277 DFW Datacenter	`0.22ms` from Dallas, US
69.69.157.128	AS209 CenturyLink Communications, LLC	`0.62ms` from Orlando, US
58.251.125.144	AS135061 China Unicom Guangdong IP network	`3.42ms` from Shenzhen, CN
92.58.20.128	AS12479 Orange Espagne SA	`7.37ms` from Zaragoza, ES
125.47.226.160	AS4837 CHINA UNICOM China169 Backbone	`6.03ms` from Zhengzhou, CN
155.137.91.0	AS55821 RADIUS TELECOMS, INC.	`4.21ms` from Angeles City, PH
39.106.163.240	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.39ms` from Beijing, CN
198.12.97.176	AS36352 HostPapa	`0.17ms` from Chicago, US
18.219.31.0	AS16509 Amazon.com, Inc.	`0.09ms` from Columbus, US
122.173.125.128	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.07ms` from Delhi, IN
83.236.135.224	AS20676 Plusnet GmbH	`2.35ms` from Duesseldorf, DE
78.35.209.96	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`5.11ms` from Duesseldorf, DE
219.131.213.160	AS4134 CHINANET-BACKBONE	`7.69ms` from Guangzhou, CN
152.40.46.160	AS53785 University of North Carolina at Greensboro	`11.29ms` from Herndon, US
86.142.91.224	AS2856 British Telecommunications PLC	`2.03ms` from London, GB
92.174.246.96	AS3215 Orange S.A.	`2.12ms` from Marseille, FR
90.47.2.64	AS3215 Orange S.A.	`11.58ms` from Paris, FR
126.78.153.16	AS17676 SoftBank Corp.	`3.11ms` from Tokyo, JP
77.173.26.192	AS1136 KPN B.V.	`1.27ms` from Amsterdam, NL
103.139.107.64	AS56030 Voyager Internet Ltd.	`8.73ms` from Auckland, NZ
192.99.26.16	AS16276 OVH SAS	`0.10ms` from Beauharnois, CA
157.181.176.224	AS2012 ELTENET	`0.66ms` from Budapest, HU
196.64.84.64	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.65ms` from Casablanca, MA
102.102.37.32	AS36925 MEDITELECOM	`18.75ms` from Casablanca, MA
101.204.164.64	AS4837 CHINA UNICOM China169 Backbone	`6.66ms` from Chengdu, CN

Traceroute

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

traceroute -a -n -q1 -m9 51.116.19.77

traceroute to 51.116.19.77 (51.116.19.77): 9 hops max, 52 byte packets

1 [AS36436] 199.115.205.101 0.255 ms

2 *

3 [AS6939] 184.105.65.98 12.136 ms

4 *

5 [] 206.108.255.157 28.749 ms

6 [AS8075] 104.44.53.1 15.393 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Des Moines, US

On November 28th 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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