40.148.0.0/16

AS8075 · Microsoft Corporation

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Summary

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

WHOIS Details

NetHandle:      NET-40-148-0-0-1
OrgID:          MSFT
Parent:         NET-40-0-0-0-0
NetName:        MSFT
NetRange:       40.148.0.0 - 40.148.255.255
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:        * [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:      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


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

Nearby Ranges

BGP prefixes that overlap with 40.0.0.0/8

Range	ASN	Company	Num of IPs
40.28.0.0/14	AS4249	Eli Lilly and Company	262,144
40.204.0.0/14	AS4249	Eli Lilly and Company	262,144
40.144.0.0/15	AS4249	Eli Lilly and Company	131,072
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
40.250.0.0/15	AS4249	Eli Lilly and Company	131,072
40.254.0.0/15	AS4249	Eli Lilly and Company	131,072
40.176.0.0/15	AS16509	Amazon Data Services Canada	131,072
40.214.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.147.0.0/16	AS4249	Eli Lilly and Company	65,536
40.161.0.0/16	AS4181	TDS TELECOM	65,536
40.209.0.0/16	AS4249	Eli Lilly and Company	65,536
40.228.0.0/16	AS4249	Eli Lilly and Company	65,536
40.201.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.227.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.162.0.0/16	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	65,536
40.32.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.213.0.0/16	AS4249	Eli Lilly and Company	65,536
40.229.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.45.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.224.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.48.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.46.0.0/16	AS4249	Eli Lilly and Company	65,536
40.252.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.172.0.0/16	AS16509	Amazon Data Services UAE	65,536
40.210.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.35.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.220.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.216.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.208.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.47.0.0/16	AS8075	Microsoft Corporation	65,536
40.253.0.0/16	AS8075	Microsoft Corporation	65,536
40.38.0.0/16	AS8987	Amazon.com, Inc.	65,536
40.146.0.0/16	AS8075	Microsoft Corporation	65,536
40.155.0.0/16	AS8075	Microsoft Corporation	65,536
40.159.0.0/16	AS8075	Microsoft Corporation	65,536
40.212.0.0/16	AS8075	Microsoft Corporation	65,536
40.192.0.0/17	AS16509	Amazon Data Services India	32,768
40.143.128.0/17	AS17378	TierPoint, LLC	32,768
40.125.128.0/17	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	32,768
40.143.128.0/17	AS11958	TierPoint, LLC	32,768
40.142.128.0/17	AS7029	Windstream Communications LLC	32,768
40.143.0.0/18	AS17378	TierPoint, LLC	16,384
40.126.64.0/18	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	16,384
40.142.64.0/18	AS17378	TierPoint, LLC	16,384
40.143.0.0/18	AS22065	TierPoint, LLC	16,384
40.126.0.0/18	AS8075	Microsoft Corporation	16,384
40.183.160.0/19	AS9009	Private Customer	8,192
40.142.32.0/19	AS17378	TierPoint, LLC	8,192

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

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
98.252.61.128	AS7922 Comcast Cable Communications, LLC	`7.59ms` from Ashburn, US
44.234.136.240	AS16509 Amazon.com, Inc.	`0.23ms` from Boardman, US
84.184.129.192	AS3320 Deutsche Telekom AG	`3.69ms` from Duesseldorf, DE
187.204.153.80	AS8151 UNINET	`0.98ms` from Guadalajara, MX
18.162.44.0	AS16509 Amazon.com, Inc.	`0.10ms` from Hong Kong, HK
40.120.58.176	AS8075 Microsoft Corporation	`0.29ms` from London, GB
83.106.125.240	AS5378 Vodafone Limited	`5.08ms` from Manchester, GB
181.141.200.112	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`7.63ms` from Medellin, CO
117.212.117.128	AS9829 National Internet Backbone	`7.83ms` from Mumbai, IN
159.195.4.96	AS197540 netcup GmbH	`0.35ms` from Nuernberg, DE
94.238.242.160	AS5410 Bouygues Telecom SA	`7.56ms` from Paris, FR
24.101.178.96	AS27364 Armstrong	`7.63ms` from Pittsburgh, US
39.68.156.176	AS4837 CHINA UNICOM China169 Backbone	`7.61ms` from Qingdao, CN
99.230.196.144	AS812 Rogers Communications Canada Inc.	`2.96ms` from Toronto, CA
216.110.196.192	AS25899 LS Networks	`4.17ms` from Bend, US
41.40.198.0	AS8452 TE-AS	`6.88ms` from Cairo, EG
128.210.85.16	AS17 Purdue University	`5.44ms` from Chicago, US
20.201.159.224	AS8075 Microsoft Corporation	`3.50ms` from Copenhagen, DK
3.251.65.160	AS16509 Amazon.com, Inc.	`0.39ms` from Dublin, IE
193.105.211.0	AS196971 BEYKOZ BELEDIYESI	`2.14ms` from Istanbul, TR
4.224.152.144	AS8075 Microsoft Corporation	`0.13ms` from Lohogaon, IN
31.34.62.192	AS5410 Bouygues Telecom SA	`7.13ms` from Lyon, FR
106.7.95.16	AS4134 CHINANET-BACKBONE	`8.21ms` from Nanchang, CN
73.224.121.176	AS7922 Comcast Cable Communications, LLC	`7.65ms` from Orlando, US
151.63.76.144	AS1267 WIND TRE S.P.A.	`11.52ms` from Rome, IT

Traceroute

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

traceroute -a -n -q1 -f5 -m10 40.148.66.233

traceroute to 40.148.66.233 (40.148.66.233): 10 hops max, 52 byte packets

5 [AS3342] 212.237.251.46 1.568 ms

6 *

7 [AS8075] 104.44.196.255 5.35 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Skanderborg, DK

On November 28th 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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