1. All IP Ranges
  2. 20.0.0.0/8
  3. 20.143.0.0/16
  4. AS8075  | 20.143.0.0/16

20.143.0.0/16

AS8075  ·  Microsoft Corporation

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Summary

Country United States
Domain microsoft.com
ASN AS8075
Registry ARIN
ID MSFT

WHOIS Details

NetHandle:      NET-20-143-0-0-1
OrgID:          MSFT
Parent:         NET-20-0-0-0-0
NetName:        MSFT
NetRange:       20.143.0.0 - 20.147.255.255
NetType:        allocation
RegDate:        2017-10-18
Updated:        2021-12-14
Source:         ARIN


OrgID:          MSFT
OrgName:        Microsoft Corporation
CanAllocate:    
Street:         One Microsoft Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
Comment:        To report suspected security issues specific to traffic emanating from Microsoft online services, including the distribution of malicious content or other illicit or illegal material through a Microsoft online service, please submit reports to:
Comment:        * https://cert.microsoft.com.  
Comment:        For SPAM and other abuse issues, such as Microsoft Accounts, please contact:
Comment:        * [email protected].  
Comment:        To report security vulnerabilities in Microsoft products and services, please contact:
Comment:        * [email protected].  
Comment:        For legal and law enforcement-related requests, please contact:
Comment:        * [email protected]
Comment:        For routing, peering or DNS issues, please 
Comment:        contact:
Comment:        * [email protected]
RegDate:        1998-07-10
Updated:        2025-06-10
OrgAdminHandle: IPHOS5-ARIN
OrgTechHandle:  BEDAR6-ARIN
OrgTechHandle:  IPHOS5-ARIN
OrgTechHandle:  MRPD-ARIN
OrgTechHandle:  SINGH683-ARIN
OrgAbuseHandle: MAC74-ARIN
OrgRoutingHandle:   CHATU3-ARIN
Source:         ARIN


POCHandle:      MRPD-ARIN
IsRole:         Y
LastName:       Microsoft Routing, Peering, and DNS
FirstName:      
Street:         One Microsoft Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2013-08-20
Updated:        2025-10-16
OfficePhone:    +1-425-882-8080
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      SINGH683-ARIN
IsRole:         N
LastName:       Singh
FirstName:      Prachi
Street:         1 Microsoft Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2023-06-13
Updated:        2023-07-11
OfficePhone:    +1-425-707-5601
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      IPHOS5-ARIN
IsRole:         N
LastName:       IPHostmaster
FirstName:      IPHostmaster
Street:         One Microsoft Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     20147
RegDate:        2021-10-13
Updated:        2025-10-21
OfficePhone:    +1-425-538-6637
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      BEDAR6-ARIN
IsRole:         N
LastName:       Bedard
FirstName:      Dawn
Street:         1 Redmond Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2016-10-20
Updated:        2025-08-19
OfficePhone:    +1-425-538-6637
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MAC74-ARIN
IsRole:         Y
LastName:       Microsoft Abuse Contact
FirstName:      
Street:         One Microsoft Way
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2013-08-20
Updated:        2025-06-10
OfficePhone:    +1-425-882-8080
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 20.0.0.0/8

Range ASN Company Num of IPs
20.192.0.0/10 AS8075 Microsoft Corporation 4,194,304
20.0.0.0/11 AS8075 Microsoft Corporation 2,097,152
20.160.0.0/12 AS8075 Microsoft Corporation 1,048,576
20.140.0.0/15 AS8070 Microsoft Corporation 131,072
20.129.0.0/16 AS16509 Amazon.com, Inc. 65,536
20.142.0.0/16 AS16509 Amazon.com, Inc. 65,536
20.131.0.0/16 AS16509 Amazon.com, Inc. 65,536
20.156.186.0/24 AS46116 Fixnetix Inc 256

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
Read more

Pingable IPs

3,736 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
20.143.86.170 AS8075 Microsoft Corporation 0.32ms from Quincy, US
20.143.84.10 AS8075 Microsoft Corporation 0.37ms from Quincy, US
20.143.92.5 AS8075 Microsoft Corporation 0.18ms from Santiago, CL
20.143.54.2 AS8075 Microsoft Corporation 3.80ms from Dubai, AE
20.143.51.188 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
20.143.53.234 AS8075 Microsoft Corporation 0.66ms from Ashburn, US
20.143.8.27 AS8075 Microsoft Corporation 0.57ms from Chicago, US
20.143.6.143 AS8075 Microsoft Corporation 0.23ms from Warsaw, PL
20.143.82.15 AS8075 Microsoft Corporation 1.25ms from Amsterdam, NL
20.143.124.17 AS8075 Microsoft Corporation 0.25ms from Dublin, IE
20.143.10.70 AS8075 Microsoft Corporation 0.82ms from San Jose, US
20.143.70.190 AS8075 Microsoft Corporation 0.22ms from Des Moines, US
20.143.40.17 AS8075 Microsoft Corporation 0.56ms from Taipei, TW
20.143.1.25 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
20.143.73.112 AS8075 Microsoft Corporation 0.36ms from Ashburn, US
20.143.77.79 AS8075 Microsoft Corporation 0.22ms from Boydton, US
20.143.47.153 AS8075 Microsoft Corporation 0.16ms from Dublin, IE
20.143.7.70 AS8075 Microsoft Corporation 0.22ms from Warsaw, PL
20.143.20.34 AS8075 Microsoft Corporation 0.37ms from Warsaw, PL
20.143.46.157 AS8075 Microsoft Corporation 0.14ms from Dublin, IE
20.143.48.53 AS8075 Microsoft Corporation 0.22ms from Kuala Lumpur, MY
20.143.14.48 AS8075 Microsoft Corporation 0.17ms from Milan, IT
20.143.87.73 AS8075 Microsoft Corporation 0.35ms from Quincy, US
20.143.58.15 AS8075 Microsoft Corporation 0.22ms from Auckland, NZ
20.143.98.0 AS8075 Microsoft Corporation 2.81ms from Copenhagen, DK

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
217.18.79.240 AS21221 Infopact Netwerkdiensten B.V. 0.38ms from Amsterdam, NL
104.130.179.16 AS27357 Rackspace Hosting 0.51ms from Ashburn, US
51.104.47.192 AS8075 Microsoft Corporation 0.14ms from Cardiff, GB
111.230.84.224 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.91ms from Guangzhou, CN
46.243.229.176 AS212772 AdGuard Software Limited 0.07ms from Hong Kong, HK
61.190.171.192 AS4134 CHINANET-BACKBONE 7.26ms from Huai'an, CN
102.128.83.96 AS328320 Kurlec Wireless (PTY) Ltd 14.35ms from Johannesburg, ZA
86.177.177.224 AS2856 British Telecommunications PLC 5.96ms from London, GB
73.235.188.128 AS7922 Comcast Cable Communications, LLC 10.56ms from Los Angeles, US
95.252.177.80 AS3269 Telecom Italia S.p.A. 5.29ms from Milan, IT
95.214.61.144 AS198610 Beget LLC 10.30ms from Moscow, RU
73.112.153.16 AS7922 Comcast Cable Communications, LLC 10.22ms from New York City, US
60.42.80.32 AS4713 NTT DOCOMO BUSINESS,Inc. 3.16ms from Osaka, JP
54.243.160.112 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
75.172.10.32 AS209 CenturyLink Communications, LLC 1.42ms from Seattle, US
90.154.132.208 AS8866 Vivacom Bulgaria EAD 0.91ms from Sofia, BG
153.233.242.96 AS4713 NTT DOCOMO BUSINESS,Inc. 19.06ms from Tokyo, JP
95.108.10.16 AS43118 East & West Sp. z o.o. 6.22ms from Warsaw, PL
101.206.104.128 AS4837 CHINA UNICOM China169 Backbone 7.47ms from Chengdu, CN
87.172.101.144 AS3320 Deutsche Telekom AG 2.87ms from Duesseldorf, DE
114.229.61.0 AS4134 CHINANET-BACKBONE 5.75ms from Huai'an, CN
2.96.156.160 AS13285 TalkTalk Communications Limited 1.46ms from London, GB
65.49.217.128 AS25820 IT7 Networks Inc 0.19ms from Los Angeles, US
117.43.170.144 AS4134 CHINANET-BACKBONE 1.15ms from Nanchang, CN
121.42.157.144 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.54ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -f5 -m12 20.143.27.186
traceroute to 20.143.27.186 (20.143.27.186): 12 hops max, 52 byte packets
7 *
8 [AS8551] 84.110.39.234 1.213 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Tel Aviv, IL
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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