Data as of Nov 12, 2026
153.65.20.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Teradata Operations, Inc.
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 153.64.0.0/15 | 131,072 | TD-SDDATA | Teradata Operations, Inc. (TERAD) · US | Direct Allocation | Sep 23, 1991 | neil. |
| └ 153.65.20.0/24 | 256 | AZURE-USWEST3-153-65-20 | Teradata Operations, Inc. (C11341714) · US | Reassigned | Sep 4, 2025 | neil. via TD-SDDATA |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Teradata Operations, Inc.
- Handle
- TERAD
- Range
- 153.
64. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Sep 23, 1991
- Legacy
- yes
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
- Rotating
- First seen
- May 2007
- Current origin since
- Sep 2025 · 1.2 yr
- Origin networks
- 3
- Last change of origin
- Sep 2025
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 153.
65. 20. 0/ 24 - Netname
- AZURE-USWEST3-153-65-20
- Registrant
- Teradata Operations, Inc.
- Organization
- Teradata Operations, Inc. (C11341714)
- Type
- Reassigned
- Handle
- NET-153-65-20-0-1
- Parent
- NET-153-64-0-0-1
- Created
- Sep 4, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 23, 1991
- Status
- assigned
Report abuse
Abuse contact
- neil.
palmer@ teradata. com - Name
- Domain Admin
- Phone
- +1-858-485-1220
- Handle
- DOMAI380-ARIN