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:      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:      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


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

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
40.144.0.0/15	AS4249	Eli Lilly and Company	131,072
40.184.0.0/15	AS4249	Eli Lilly and Company	131,072
40.254.0.0/15	AS4249	Eli Lilly and Company	131,072
40.72.0.0/15	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	131,072
40.176.0.0/15	AS16509	Amazon Data Services Canada	131,072
40.250.0.0/15	AS4249	Eli Lilly and Company	131,072
40.208.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.228.0.0/16	AS4249	Eli Lilly and Company	65,536
40.252.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.32.0.0/16	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
40.201.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.45.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.229.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.209.0.0/16	AS4249	Eli Lilly and Company	65,536
40.224.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.213.0.0/16	AS4249	Eli Lilly and Company	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
40.216.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.227.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.35.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.162.0.0/16	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	65,536
40.172.0.0/16	AS16509	Amazon Data Services UAE	65,536
40.220.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.214.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.210.0.0/16	AS16509	Amazon.com, Inc.	65,536
40.38.0.0/16	AS8987	Amazon.com, Inc.	65,536
40.253.0.0/16	AS8075	Microsoft Corporation	65,536
40.47.0.0/16	AS8075	Microsoft Corporation	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
40.125.128.0/17	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	32,768
40.142.128.0/17	AS7029	Windstream Communications LLC	32,768
40.143.128.0/17	AS17378	TierPoint, LLC	32,768
40.143.128.0/17	AS11958	TierPoint, LLC	32,768
40.142.64.0/18	AS17378	TierPoint, LLC	16,384
40.143.0.0/18	AS22065	TierPoint, LLC	16,384
40.143.0.0/18	AS17378	TierPoint, LLC	16,384
40.126.64.0/18	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	16,384
40.126.0.0/18	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
76.145.26.192	AS7922 Comcast Cable Communications, LLC	`4.68ms` from Atlanta, US
109.130.241.64	AS5432 Proximus NV	`3.61ms` from Brussels, BE
192.230.192.80	AS55230 Pulaski White Rural Telephone Cooperative Inc.	`3.77ms` from Chicago, US
189.228.124.208	AS8151 UNINET	`1.26ms` from Mexico City, MX
82.106.76.0	AS3269 Telecom Italia S.p.A.	`3.73ms` from Milan, IT
172.92.146.144	AS11404 Wave Broadband	`0.41ms` from Seattle, US
76.28.213.32	AS7922 Comcast Cable Communications, LLC	`11.32ms` from Seattle, US
2.71.197.64	AS44034 Hi3G Access AB	`7.02ms` from Stockholm, SE
87.202.85.160	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.09ms` from Athens, GR
73.47.238.96	AS7922 Comcast Cable Communications, LLC	`10.30ms` from Boston, US
102.96.41.0	AS36925 MEDITELECOM	`17.96ms` from Casablanca, MA
97.243.49.240	AS6167 Verizon Business	`10.82ms` from Chicago, US
202.71.184.192	AS154024 FLEXEERE IT SOLUTIONS PVT LTD	`7.46ms` from Delhi, IN
113.74.50.112	AS4134 CHINANET-BACKBONE	`8.10ms` from Guangzhou, CN
123.148.238.160	AS4837 CHINA UNICOM China169 Backbone	`7.79ms` from Hangzhou, CN
2.17.232.48	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.13ms` from Istanbul, TR
116.55.25.48	AS4134 CHINANET-BACKBONE	`4.29ms` from Kunming, CN
183.224.146.16	AS9808 China Mobile Communications Group Co., Ltd.	`6.29ms` from Kunming, CN
42.6.241.0	AS4837 CHINA UNICOM China169 Backbone	`11.15ms` from Liaoyang, CN
109.158.221.176	AS2856 British Telecommunications PLC	`1.18ms` from London, GB
174.176.109.160	AS7922 Comcast Cable Communications, LLC	`4.71ms` from Miami, US
94.238.242.160	AS5410 Bouygues Telecom SA	`7.47ms` from Paris, FR
45.63.17.144	AS20473 The Constant Company, LLC	`0.17ms` from Piscataway, US
187.39.166.192	AS28573 Claro NXT Telecomunicacoes Ltda	`9.94ms` from Porto Alegre, BR
51.254.171.48	AS16276 OVH SAS	`0.06ms` from Roubaix, FR

Traceroute

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

traceroute -a -n -q1 -f5 -m8 40.148.40.85

traceroute to 40.148.40.85 (40.148.40.85): 8 hops max, 52 byte packets

5 [AS8075] 104.44.14.210 18.468 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Chapeco, BR

On December 14th 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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