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
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.172.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	A100 ROW Inc	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.204.0.0/15	AS16509	A100 ROW Inc	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.72.0.0/15	AS16509	A100 Row Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.202.0.0/15	AS16509	A100 Row Inc	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.228.0.0/15	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
51.254.0.0/15	AS16276	OVH SAS	131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.6.0.0/15	AS6871		131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.166.0.0/15	AS16509	A100 Row Inc	131,072
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.164.0.0/15	AS16509	A100 ROW Inc	131,072
51.200.0.0/15	AS16509	A100 ROW Inc	131,072
51.206.0.0/15	AS16509	A100 Row Inc	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.226.0.0/15	AS16509	A100 Row Inc	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.158.0.0/15	AS12876	Scaleway	131,072
51.125.0.0/16	AS16509	A100 ROW Inc	65,536
51.111.0.0/16	AS8075	Microsoft Limited	65,536
51.124.0.0/16	AS8075	Microsoft Limited UK	65,536
51.178.0.0/16	AS16276	OVH SAS	65,536
51.148.0.0/16	AS13037	Zen Internet Limited	65,536
51.110.0.0/16	AS16509	A100 Row Inc	65,536
51.146.0.0/16	AS5607	Sky UK Limited	65,536
51.121.0.0/16	AS16509	A100 ROW Inc	65,536

Hosted domains

There are 5,859 domain names hosted across 334 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	868
51.116.145.35	boersenmedien.de	591
51.116.145.32	rewatchables.com	581
51.116.145.33	finants.ro	485
51.116.145.38	software-eule.de	426
51.116.145.37	boerse-online.de	410
51.116.145.34	heel.com	375
51.116.154.224	europersonal.com	265
51.116.145.36	forsvaret.dk	234
51.116.97.225	alpenverein.de	181
51.116.114.43	allfoye.com	115
51.116.176.235	rational-online.it	107
51.116.99.197	yapitlv.com	64
51.116.184.185	trading-pc.net	54
51.116.237.107	musikschule-gemuenden.de	54
51.116.127.237	13diasdeia.com	54
51.116.227.89	schonderfeld.de	40
51.116.118.26	pei.it	37
51.116.183.186	nokiamodena.it	36
51.116.96.94	quizapp-lab.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

4,321 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.116.106.159	AS8075 Microsoft Corporation	`0.53ms` from Frankfurt am Main, DE
51.116.111.88	AS8075 Microsoft Corporation	`0.47ms` from Frankfurt am Main, DE
51.116.105.149	AS8075 Microsoft Corporation	`0.48ms` from Frankfurt am Main, DE
51.116.100.27	AS8075 Microsoft Corporation	`0.45ms` from Frankfurt am Main, DE
51.116.116.152	AS8075 Microsoft Corporation	`0.22ms` from Frankfurt am Main, DE
51.116.88.19	AS8075 Microsoft Corporation	`0.99ms` from Berlin, DE
51.116.127.183	AS8075 Microsoft Corporation	`0.75ms` from Frankfurt am Main, DE
51.116.32.35	AS8075 Microsoft Corporation	`1.15ms` from Berlin, DE
51.116.62.10	AS8075 Microsoft Corporation	`1.09ms` from Berlin, DE
51.116.2.229	AS8075 Microsoft Corporation	`1.02ms` from Berlin, DE
51.116.125.212	AS8075 Microsoft Corporation	`0.83ms` from Frankfurt am Main, DE
51.116.120.52	AS8075 Microsoft Corporation	`0.46ms` from Frankfurt am Main, DE
51.116.114.98	AS8075 Microsoft Corporation	`0.19ms` from Frankfurt am Main, DE
51.116.64.96	AS8075 Microsoft Corporation	`1.34ms` from Berlin, DE
51.116.97.98	AS8075 Microsoft Corporation	`0.41ms` from Frankfurt am Main, DE
51.116.66.65	AS8075 Microsoft Corporation	`1.75ms` from Berlin, DE
51.116.109.38	AS8075 Microsoft Corporation	`0.43ms` from Frankfurt am Main, DE
51.116.124.185	AS8075 Microsoft Corporation	`0.46ms` from Frankfurt am Main, DE
51.116.123.100	AS8075 Microsoft Corporation	`0.41ms` from Frankfurt am Main, DE
51.116.96.14	AS8075 Microsoft Corporation	`0.42ms` from Frankfurt am Main, DE
51.116.84.35	AS8075 Microsoft Corporation	`1.15ms` from Berlin, DE
51.116.48.136	AS8075 Microsoft Corporation	`1.00ms` from Berlin, DE
51.116.56.3	AS8075 Microsoft Corporation	`1.12ms` from Berlin, DE
51.116.108.173	AS8075 Microsoft Corporation	`0.50ms` from Frankfurt am Main, DE
51.116.77.11	AS8075 Microsoft Corporation	`1.11ms` from Berlin, 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
68.230.219.176	AS22773 Cox Communications Inc.	`9.76ms` from Ashburn, US
157.181.176.224	AS2012 ELTENET	`0.67ms` from Budapest, HU
184.64.110.0	AS6327 Shaw Communications Inc.	`4.67ms` from Calgary, CA
18.191.167.192	AS16509 Amazon.com, Inc.	`0.65ms` from Columbus, US
182.65.105.176	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.02ms` from Delhi, IN
172.202.120.64	AS8075 Microsoft Corporation	`0.47ms` from Des Moines, US
34.159.57.48	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
79.168.0.96	AS2860 NOS COMUNICACOES, S.A.	`4.53ms` from Lisbon, PT
88.17.160.128	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.31ms` from Madrid, ES
34.98.126.80	AS396982 Google LLC	`0.08ms` from Melbourne, AU
66.36.174.112	AS14265 TPx Communications	`3.36ms` from San Jose, US
115.62.145.16	AS4837 CHINA UNICOM China169 Backbone	`6.48ms` from Zhengzhou, CN
185.157.141.0	AS35660 SA EASI	`3.83ms` from Amsterdam, NL
104.59.129.96	AS7018 AT&T Enterprises, LLC	`4.03ms` from Atlanta, US
191.108.15.224	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.92ms` from Bogota, CO
113.247.185.48	AS4134 CHINANET-BACKBONE	`1.63ms` from Changsha, CN
71.75.244.208	AS11426 Charter Communications Inc	`4.77ms` from Charlotte, US
82.90.1.0	AS3269 Telecom Italia S.p.A.	`1.65ms` from Milan, IT
188.14.141.0	AS3269 Telecom Italia S.p.A.	`6.96ms` from Milan, IT
92.127.208.16	AS12389 PJSC Rostelecom	`0.96ms` from Novosibirsk, RU
219.106.168.80	AS7522 STNet, Incorporated	`4.43ms` from Osaka, JP
90.47.2.64	AS3215 Orange S.A.	`11.73ms` from Paris, FR
38.180.154.96	AS9009 M247 Europe SRL	`0.20ms` from Paris, FR
52.183.46.112	AS8075 Microsoft Corporation	`0.30ms` from Quincy, US
188.54.57.64	AS25019 Saudi Telecom Company JSC	`1.78ms` from Riyadh, SA

Traceroute

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

traceroute -a -n -q1 -f3 -m9 51.116.13.204

traceroute to 51.116.13.204 (51.116.13.204): 9 hops max, 52 byte packets

3 [AS969] 102.130.51.114 0.368 ms

4 [AS969] 199.119.64.202 0.263 ms

5 [] 193.178.185.104 0.857 ms

6 [AS8075] 51.10.10.92 1.063 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Berlin, DE

On September 11th 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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