Data as of Nov 7, 2026
52.120.0.0/14
No anonymizer spaceMicrosoft Corporation
Announcements
Nesting
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Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 52.122.0.0/24 since Feb 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.1.0/24 since Feb 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.2.0/23 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.4.0/23 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.6.0/24 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.7.0/24 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.8.0/22 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.12.0/22 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.16.0/22 since May 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.20.0/22 since Sep 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.24.0/22 since Sep 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.28.0/22 since Oct 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.32.0/22 since Oct 2022 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.36.0/22 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.40.0/22 since Feb 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.44.0/22 since May 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.52.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.56.0/21 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.64.0/21 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.72.0/21 since Jan 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.80.0/21 since Jan 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.88.0/21 since Jan 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.96.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.104.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.112.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.120.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.128.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.136.0/21 since Jun 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.144.0/22 since Aug 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.148.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.152.0/21 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.160.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.164.0/22 since Oct 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.168.0/21 since Oct 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.176.0/22 since Oct 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.180.0/22 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.184.0/21 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.192.0/22 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.196.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.200.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.204.0/22 since Jan 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.208.0/22 since Jan 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.212.0/22 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.216.0/22 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.220.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.224.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.228.0/22 since Jul 2023 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.236.0/22 since Oct 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.240.0/22 since Oct 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.244.0/24 since Oct 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.245.0/24 since May 2025 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.246.0/23 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.248.0/22 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.252.0/24 since May 2024 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.253.0/24 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.254.0/24 since May 2025 | AS8069 | Hosting | Microsoft Corporation | |
| 52.122.255.0/24 since May 2025 | AS8069 | Hosting | Microsoft Corporation |
Network & registry
Origin network
AS8075
US
- Name
- Microsoft Corporation
- Type
- Hosting
- Registered
- Mar 31, 1997
- Domain
- microsoft.com
- Website
- www.microsoft.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2015
- Current origin since
- Dec 2015 · 11 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 52.
120. 0. 0/ 14 - Netname
- MSFT
- Registrant
- Microsoft Corporation
- Organization
- Microsoft Corporation (MSFT)
- Org address
- One Microsoft Way, Redmond, WA, 98052
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-52-120-0-0-1
- Parent
- NET-52-0-0-0-0
- Created
- Nov 24, 2015
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 24, 2015
- Status
- assigned
Report abuse
Abuse contact
- abuse@
microsoft. com - Name
- Microsoft Abuse Contact
- Phone
- +1-425-882-8080
- Handle
- MAC74-ARIN