20.45.128.0/20

AS8075 · Microsoft Corporation

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Summary

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

WHOIS Details

NetHandle:      NET-20-33-0-0-1
OrgID:          MSFT
Parent:         NET-20-0-0-0-0
NetName:        MSFT
NetRange:       20.33.0.0 - 20.128.255.255
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:      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:      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


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:      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:      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

Nearby Ranges

BGP prefixes that overlap with 20.45.0.0/16

No nearby ranges found.

Hosted domains

There are 14 domain names hosted across 12 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
20.45.130.206	uqrs.net	3
20.45.132.115	letsgetliving.co.za	1
20.45.128.75	farmx-portal.org	1
20.45.131.148	waaka.co	1
20.45.131.14	mobilitysystems.cloud	1
20.45.128.37	summit.ao	1
20.45.134.120	simbadv.com	1
20.45.128.254	uamuzi.site	1

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

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

IP Address	ASN	Details
20.45.129.209	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
20.45.130.84	AS8075 Microsoft Corporation	`0.12ms` from Johannesburg, ZA
20.45.132.90	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
20.45.131.41	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
20.45.135.195	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
20.45.128.75	AS8075 Microsoft Corporation	`0.14ms` from Johannesburg, ZA
20.45.133.242	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA
20.45.134.222	AS8075 Microsoft Corporation	`0.13ms` from Johannesburg, ZA

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
212.122.43.36	AS16097 HL komm Telekommunikations GmbH	`4.77ms` from Berlin, DE
46.50.68.84	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`9.91ms` from Braga, PT
47.187.7.52	AS5650 Frontier Communications of America, Inc.	`1.47ms` from Dallas, US
195.35.99.4	AS15660 Findomestic Banca S.p.A.	`0.86ms` from Milan, IT
88.60.113.132	AS3269 Telecom Italia S.p.A.	`2.57ms` from Milan, IT
68.71.48.196	AS10929 eStruxture Data Centers Inc.	`0.69ms` from Montreal, CA
73.120.20.20	AS7922 Comcast Cable Communications, LLC	`12.54ms` from Murfreesboro, US
5.37.255.36	AS28885 OmanTel NAP	`2.79ms` from Muscat, OM
182.87.239.100	AS4134 CHINANET-BACKBONE	`4.38ms` from Nanchang, CN
45.46.183.4	AS11351 Charter Communications Inc	`18.81ms` from New York City, US
20.209.214.100	AS8075 Microsoft Corporation	`0.54ms` from Paris, FR
125.128.61.4	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
118.52.104.244	AS4766 Korea Telecom	`1.97ms` from Seoul, KR
20.50.254.84	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
195.213.195.20	AS6871 Plusnet	`4.60ms` from Erith, GB
112.42.21.148	AS56044 China Mobile communications corporation	`9.26ms` from Liaoyang, CN
95.120.103.20	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.62ms` from Madrid, ES
171.38.85.164	AS4837 CHINA UNICOM China169 Backbone	`7.02ms` from Nanning, CN
122.130.141.100	AS2518 BIGLOBE Inc.	`1.90ms` from Osaka, JP
174.73.142.164	AS22773 Cox Communications Inc.	`6.35ms` from Phoenix, US
134.90.238.116	AS48500 Irpinia Net-Com SRL	`16.14ms` from Rome, IT
216.155.76.36	AS14117 Telefonica del Sur S.A.	`5.72ms` from Santiago, CL
50.67.134.212	AS6327 Shaw Communications	`8.03ms` from Seattle, US
121.116.81.180	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.89ms` from Tokyo, JP
82.214.155.132	AS15997 Intelligent Technologies S.A.	`0.35ms` from Warsaw, PL

Traceroute

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

traceroute -a -n -q1 -m5 20.45.138.144

traceroute to 20.45.138.144 (20.45.138.144): 5 hops max, 52 byte packets

1 [AS15169] 64.233.174.119 166.934 ms

2 [AS8075] 104.44.6.45 166.661 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Zuerich, CH

On December 6th 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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