51.51.0.0/16

AS8075  ·  Microsoft Corporation

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Summary

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

WHOIS Details

inetnum:        51.51.0.0 - 51.51.255.255
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:        2022-12-08T07:12:54Z
last-modified:  2022-12-08T07:12:54Z
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:          51.51.0.0/16
descr:          Microsoft
origin:         AS8075
notify:         radb@microsoft.com
mnt-by:         MICROSOFT-MAINT
created:        2020-07-01T16:55:32Z
last-modified:  2020-07-01T17:13:08Z
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 no domains currently hosted on this ASN.

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

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
85.144.116.128 AS50266 Odido Netherlands B.V. 13.90ms from Amsterdam, NL
68.179.151.80 AS12083 WideOpenWest Finance LLC 12.20ms from Chicago, US
18.217.113.240 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
90.247.209.32 AS5378 Vodafone Limited 9.61ms from London, GB
34.120.41.208 AS396982 Google LLC 0.08ms from Melbourne, AU
189.144.75.160 AS8151 UNINET 1.16ms from Mexico City, MX
112.169.103.224 AS4766 Korea Telecom 1.33ms from Seoul, KR
113.29.212.144 AS45768 CEnet 0.53ms from Sydney, AU
121.113.6.128 AS4713 NTT DOCOMO BUSINESS,Inc. 3.29ms from Tokyo, JP
185.132.174.112 AS39668 Intersat SRL 4.24ms from Bucharest, RO
172.75.250.16 AS11426 Charter Communications Inc 10.84ms from Charlotte, US
75.166.235.32 AS209 CenturyLink Communications, LLC 2.27ms from Denver, US
37.111.230.0 AS24389 GrameenPhone Ltd. 8.96ms from Dhaka, BD
36.85.234.128 AS7713 PT Telekomunikasi Indonesia 4.79ms from Jakarta, ID
125.253.30.80 AS38195 Superloop 0.93ms from Melbourne, AU
202.139.12.160 AS7474 SingTel Optus Pty Ltd 15.46ms from Melbourne, AU
108.241.65.224 AS7018 AT&T Enterprises, LLC 17.14ms from Miami, US
34.73.42.144 AS396982 Google LLC 0.15ms from Moncks Corner, US
79.164.87.128 AS8615 "Central Telegraph" Public Joint-stock Company 1.81ms from Moscow, RU
163.221.2.192 AS131158 Nara Institute of Science and Technology, National University Corporation 1.77ms from Osaka, JP
108.52.51.112 AS701 Verizon Business 1.82ms from Philadelphia, US
3.92.232.16 AS14618 Amazon.com, Inc. 0.53ms from Reston, US
175.243.9.16 AS4766 Korea Telecom 7.21ms from Seoul, KR
197.163.25.48 AS24863 Link Egypt (Link.NET) 9.87ms from Cairo, EG
73.246.163.16 AS7922 Comcast Cable Communications, LLC 3.83ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -m5 51.51.251.148
traceroute to 51.51.251.148 (51.51.251.148): 5 hops max, 52 byte packets
2 [AS8075] 104.44.196.19 1.768 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Los Angeles, US
On

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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