Data as of Nov 5, 2026
155.69.64.0/19
No anonymizer space · no proxy exits in 30 daysNanyang Technological University
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 155.69.0.0/16 since May 2005 | AS9419 | Business | 209 1 always on | Nanyang Technological University |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 155.69.64.0/20 since Sep 2020 | AS9247 | Business | Nanyang Technological University |
Network & registry
Origin network
AS9419
SG
- Name
- Nanyang Technological University
- Type
- Education
- Registered
- Oct 1, 1998
- Domain
- ntu.edu.sg
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 2
- Last change of origin
- Aug 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 155.69.64.0/19 | AS9419 | /19 | APNIC | RPKI valid |
| 155.69.0.0/16 | AS3491 | /16 | APNIC | Another network |
| 155.69.0.0/16 | AS9419 | /16 | APNIC | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9419 | RADB | NTU-SG | MAINT-AS3856 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 155.69.80.0/20 | AS4657 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Aug 30, 2005 |
Whois
Registration for this announcement
- Range
- 155.
69. 0. 0/ 16 - Netname
- NTUNET1
- Registrant
- Nanyang Technological University
- Registrant country
- SG
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Aug 8, 2025
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- SG
- Delegated
- Oct 30, 1991
- Status
- assigned
Report abuse
Abuse contact
- networkteamb@
ntu. edu. sg - Name
- ABUSE NTUNONSG
- Handle
- AN1078-AP