Data as of Nov 9, 2026
137.132.49.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by National University of Singapore
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 137.132.0.0/16 since May 2005 | AS7472 | Business | 595 | National University of Singapore |
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 |
|---|---|---|---|---|---|---|
| 137.132.0.0/16 | 65,536 | NUSNET | National University of Singapore (ORG-NUOS1-AP) · SG | ALLOCATED PORTABLE | — | abuse@ |
| └ 137.132.49.0/24 | 256 | NUS-SG | National University of Singapore | ALLOCATED NON-PORTABLE | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- National University of Singapore
- Handle
- ORG-NUOS1-AP
- Range
- 137.
132. 0. 0/ 16 - 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
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2026
- Current origin since
- Feb 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 137.132.49.0/24 | AS8075 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 137.
132. 49. 0/ 24 - Netname
- NUS-SG
- Registrant
- National University of Singapore
- Registrant country
- SG
- Organization
- National University of Singapore
- Org country
- SG
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Feb 24, 2026
- Maintainer
- MAINT-NUS-AP
- RIR
- APNIC
- Country
- SG
- Delegated
- Nov 28, 1989
- Status
- assigned
Report abuse
Abuse contact
- abuse@
nus. edu. sg - Name
- ABUSE NUSSG
- Handle
- AN1032-AP