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
51.186.0.0/15	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 5,825 domain names hosted across 331 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	873
51.116.145.35	boersenmedien.de	588
51.116.145.32	rewatchables.com	584
51.116.145.33	finants.ro	483
51.116.145.38	russelleurope.com	428
51.116.145.37	boerse-online.de	413
51.116.145.34	heel.com	385
51.116.154.224	europersonal.com	271
51.116.145.36	forsvaret.dk	188
51.116.97.225	alpenverein.de	182
51.116.114.43	allfoye.com	115
51.116.176.235	ikitchen-online.com	106
51.116.99.197	lia-gindi.com	65
51.116.237.107	xn--helar-mqa.de	55
51.116.184.185	sedergo.de	54
51.116.127.237	himmelys.com	54
51.116.227.89	av-mt.de	40
51.116.118.26	pei.it	37
51.116.183.186	nokiamodena.it	36
51.116.96.94	gocampus.online	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

4,278 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.116.209.102	AS8075 Microsoft Corporation	`1.02ms` from Berlin, DE
51.116.49.136	AS8075 Microsoft Corporation	`1.08ms` from Berlin, DE
51.116.183.168	AS8075 Microsoft Corporation	`0.31ms` from Frankfurt am Main, DE
51.116.236.213	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
51.116.187.106	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
51.116.252.32	AS8075 Microsoft Corporation	`0.46ms` from Frankfurt am Main, DE
51.116.118.28	AS8075 Microsoft Corporation	`0.31ms` from Frankfurt am Main, DE
51.116.58.66	AS8075 Microsoft Corporation	`1.00ms` from Berlin, DE
51.116.174.203	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
51.116.199.174	AS8075 Microsoft Corporation	`0.39ms` from Frankfurt am Main, DE
51.116.185.202	AS8075 Microsoft Corporation	`0.31ms` from Frankfurt am Main, DE
51.116.225.110	AS8075 Microsoft Corporation	`0.33ms` from Frankfurt am Main, DE
51.116.141.93	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.155.128	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.126.93	AS8075 Microsoft Corporation	`0.36ms` from Frankfurt am Main, DE
51.116.111.158	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
51.116.48.136	AS8075 Microsoft Corporation	`1.00ms` from Berlin, DE
51.116.113.87	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
51.116.104.17	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
51.116.184.139	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.235.63	AS8075 Microsoft Corporation	`0.34ms` from Frankfurt am Main, DE
51.116.251.190	AS8075 Microsoft Corporation	`0.32ms` from Frankfurt am Main, DE
51.116.157.20	AS8075 Microsoft Corporation	`0.71ms` from Frankfurt am Main, DE
51.116.220.10	AS8075 Microsoft Corporation	`1.24ms` from Berlin, DE
51.116.51.190	AS8075 Microsoft Corporation	`1.05ms` 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
52.39.191.176	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
35.210.137.16	AS15169 Google LLC	`0.17ms` from Brussels, BE
106.211.223.128	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`0.61ms` from Chennai, IN
149.75.233.176	AS6079 RCN	`8.78ms` from Chicago, US
73.211.138.16	AS7922 Comcast Cable Communications, LLC	`5.46ms` from Chicago, US
3.148.192.80	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
174.29.211.64	AS209 CenturyLink Communications, LLC	`2.08ms` from Denver, US
72.175.46.80	AS33588 Charter Communications LLC	`5.62ms` from Denver, US
131.189.72.176	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
37.37.149.240	AS42961 Mobile Telecommunications Company	`8.84ms` from Kuwait City, KW
149.74.177.48	AS12479 Orange Espagne SA	`11.23ms` from Madrid, ES
176.156.25.176	AS5410 Bouygues Telecom SA	`12.79ms` from Marseille, FR
79.50.13.16	AS3269 Telecom Italia S.p.A.	`5.07ms` from Milan, IT
79.18.119.32	AS3269 Telecom Italia S.p.A.	`7.64ms` from Milan, IT
37.215.89.192	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`2.58ms` from Minsk, BY
91.160.30.112	AS12322 Free SAS	`1.73ms` from Paris, FR
95.68.227.128	AS12389 PJSC Rostelecom	`12.16ms` from Samara, RU
52.225.75.176	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
189.245.195.144	AS8151 UNINET	`4.15ms` from Santiago de Queretaro, MX
126.10.178.64	AS17676 SoftBank Corp.	`2.64ms` from Tokyo, JP
160.16.144.208	AS9370 SAKURA Internet Inc.	`0.80ms` from Tokyo, JP
58.55.145.80	AS4134 CHINANET-BACKBONE	`3.59ms` from Wuhan, CN
5.76.247.160	AS9198 JSC Kazakhtelecom	`2.18ms` from Almaty, KZ
37.48.68.80	AS60781 LeaseWeb Netherlands B.V.	`0.25ms` from Amsterdam, NL
18.164.87.144	AS16509 Amazon.com, Inc.	`0.08ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 -f5 51.116.120.26

traceroute to 51.116.120.26 (51.116.120.26): 64 hops max, 52 byte packets

5 [] 212.68.52.69 0.419 ms

6 [] 185.1.48.11 3.152 ms

7 [AS8075] 104.44.42.23 32.097 ms

8 *

9 *

10 [AS8075] 51.10.9.154 33.027 ms

11 *

12 *

13 *

14 *

15 [AS8075] 51.116.120.26 33.812 ms

Measurement taken from

IPinfo ProbeNet in Istanbul, TR

On October 30th 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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