Data as of Nov 9, 2026
163.61.89.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Cynterra Pty Limited
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 |
|---|---|---|---|---|---|---|
| 163.61.88.0/23 | 512 | CYNTERRAPTYLTD-AU | Cynterra Pty Limited (ORG-CP14-AP) · AU | ALLOCATED PORTABLE | — | itsecurity@ |
| └ 163.61.89.0/24 | 256 | rangeB | Cynterra | ASSIGNED NON-PORTABLE | — | itsecurity@ |
Network & registry
Registry
Holder
- Organization
- Cynterra Pty Limited
- Handle
- ORG-CP14-AP
- Range
- 163.
61. 88. 0/ 23 - Registration type
- ALLOCATED PORTABLE
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
- Jul 2025
- Current origin since
- Jul 2025 · 1.3 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 163.
61. 89. 0/ 24 - Netname
- rangeB
- Registrant
- Cynterra
- Registrant country
- AU
- Organization
- Cynterra
- Org country
- AU
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Jul 30, 2025
- Maintainer
- MAINT-CYNTERRAPTYLTD-AU
- RIR
- APNIC
- Country
- AU
- Delegated
- Feb 7, 2025
- Status
- assigned
Report abuse
Abuse contact
- itsecurity@
cynterra. net - Name
- ABUSE CYNTERRAPTYLTDAU
- Handle
- AC2851-AP