Data as of Nov 8, 2026
135.238.128.0/19
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Microsoft Limited
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin May 2026
from AS10455 Nokia of America Corporation, after 1.3 years unannounced
Network & registry
Announced by
Covering announcement 135.238.0.0/16
- Prefix
- 135.238.0.0/16
- Announced by
- AS8075 Microsoft Corporation
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- UK-MICROSOFT-19960430
- Registrant
- Microsoft Limited
- RIR
- RIPE NCC
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 135.238.0.0/16
135.238.0.0/16
Routing history
- Pattern
- Reactivated
- First seen
- Apr 2023
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 2
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 135.238.0.0/16 | AS8075 | /16 | RIPE | RPKI valid |
IRR
Route objects on 135.238.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8075 | RADB | Microsoft | MAINT-AS8075 | Apr 21, 2026 |
Whois
Registration for this announcement
- Range
- 135.
224. 0. 0 - 135. 241. 255. 255 - Netname
- UK-MICROSOFT-19960430
- Registrant
- Microsoft Limited
- Registrant country
- GB
- Organization
- Microsoft Limited (ORG-MA42-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Mar 11, 2025
- Updated
- Mar 11, 2025
- Maintainer
- MICROSOFT-MAINT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Apr 30, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
microsoft. com - Name
- Microsoft Abuse Contact
- Handle
- MAC274-RIPE