40.155.0.0/16

AS8075 · Microsoft Corporation

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Summary

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

WHOIS Details

NetHandle:      NET-40-155-0-0-1
OrgID:          MSFT
Parent:         NET-40-0-0-0-0
NetName:        MSFT
NetRange:       40.155.0.0 - 40.155.255.255
NetType:        allocation
RegDate:        2023-09-29
Updated:        2023-09-29
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:        * abuse@microsoft.com.  
Comment:        To report security vulnerabilities in Microsoft products and services, please contact:
Comment:        * secure@microsoft.com.  
Comment:        For legal and law enforcement-related requests, please contact:
Comment:        * msndcc@microsoft.com
Comment:        For routing, peering or DNS issues, please 
Comment:        contact:
Comment:        * IOC@microsoft.com
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:      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:        dabedard@microsoft.com
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:        abuse@microsoft.com
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:        iphostmaster@microsoft.com
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:        pracsin@microsoft.com
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:        IOC@microsoft.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 40.0.0.0/8

Range	ASN	Company	Num of IPs
40.204.0.0/14	AS4249	Eli Lilly and Company	262,144
40.28.0.0/14	AS4249	Eli Lilly and Company	262,144
40.72.0.0/15	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	131,072
40.184.0.0/15	AS4249	Eli Lilly and Company	131,072
40.144.0.0/15	AS4249	Eli Lilly and Company	131,072
40.250.0.0/15	AS4249	Eli Lilly and Company	131,072
40.176.0.0/15	AS16509	Amazon Data Services Canada	131,072
40.254.0.0/15	AS4249	Eli Lilly and Company	131,072
40.47.0.0/16	AS8075	Microsoft Corporation	65,536
40.238.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.146.0.0/16	AS8075	Microsoft Corporation	65,536
40.46.0.0/16	AS4249	Eli Lilly and Company	65,536
40.213.0.0/16	AS4249	Eli Lilly and Company	65,536
40.38.0.0/16	AS8987	Amazon.com, Inc.	65,536
40.159.0.0/16	AS8075	Microsoft Corporation	65,536
40.208.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.162.0.0/16	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	65,536
40.212.0.0/16	AS8075	Microsoft Corporation	65,536
40.214.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.220.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.148.0.0/16	AS8075	Microsoft Corporation	65,536
40.239.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.252.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.45.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.228.0.0/16	AS4249	Eli Lilly and Company	65,536
40.209.0.0/16	AS4249	Eli Lilly and Company	65,536
40.147.0.0/16	AS4249	Eli Lilly and Company	65,536
40.161.0.0/16	AS4181	TDS TELECOM	65,536
40.48.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.38.0.0/16	AS8987	Amazon.com, Inc.	65,536
40.172.0.0/16	AS16509	Amazon Data Services UAE	65,536
40.32.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.150.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.38.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.38.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.195.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.201.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.35.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.210.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.253.0.0/16	AS8075	Microsoft Corporation	65,536
40.216.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.229.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.224.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.227.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.143.128.0/17	AS17378	TierPoint, LLC	32,768
40.142.128.0/17	AS7029	Windstream Communications LLC	32,768
40.192.0.0/17	AS16509	Amazon Data Services India	32,768
40.143.128.0/17	AS11958	TierPoint, LLC	32,768
40.125.128.0/17	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	32,768

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
40.155.79.6	doalias.site	1
40.155.70.105	ijavaliu.com	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

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
158.94.141.128	AS6079 RCN	`1.57ms` from Ashburn, US
48.194.64.0	AS8075 Microsoft Corporation	`0.62ms` from Ashburn, US
75.136.49.96	AS20115 Charter Communications LLC	`15.79ms` from Atlanta, US
189.6.76.240	AS28573 Claro NXT Telecomunicacoes Ltda	`0.41ms` from Brasilia, BR
223.149.166.208	AS4134 CHINANET-BACKBONE	`7.20ms` from Changsha, CN
111.23.111.16	AS56047 China Mobile communications corporation	`6.63ms` from Changsha, CN
98.1.93.224	AS11351 Charter Communications Inc	`19.19ms` from Chicago, US
71.63.100.32	AS7922 Comcast Cable Communications, LLC	`9.38ms` from Herndon, US
159.143.147.112	AS8011 MongoDB, Inc.	`1.33ms` from Hyderabad, IN
92.30.143.176	AS13285 TalkTalk Communications Limited	`6.62ms` from Manchester, GB
13.233.129.16	AS16509 Amazon.com, Inc.	`0.13ms` from Mumbai, IN
125.105.130.176	AS4134 CHINANET-BACKBONE	`7.34ms` from Ningbo, CN
72.239.250.80	AS33363 Charter Communications, Inc	`8.63ms` from Orlando, US
47.18.109.32	AS6128 Cablevision Systems Corp.	`9.13ms` from Secaucus, US
220.125.223.128	AS4766 Korea Telecom	`3.59ms` from Seoul, KR
3.104.114.160	AS16509 Amazon.com, Inc.	`0.15ms` from Sydney, AU
36.225.44.96	AS3462 Data Communication Business Group	`0.43ms` from Taipei, TW
118.21.74.48	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.15ms` from Tokyo, JP
40.90.233.208	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
89.44.159.224	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`5.23ms` from Athens, GR
181.235.155.0	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`7.86ms` from Bogota, CO
173.76.29.208	AS701 Verizon Business	`1.07ms` from Boston, US
199.78.74.0	AS3356 Level 3 Parent, LLC	`1.41ms` from Chicago, US
145.223.101.32	AS47583 Hostinger International Limited	`0.44ms` from Frankfurt am Main, DE
4.223.169.80	AS8075 Microsoft Corporation	`0.18ms` from Gaevle, SE

Traceroute

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

traceroute -a -n -q1 -m5 40.155.64.141

traceroute to 40.155.64.141 (40.155.64.141): 5 hops max, 52 byte packets

1 [AS15169] 72.14.235.111 24.68 ms

2 [AS8075] 104.44.196.43 28.387 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Delhi, IN

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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