Data as of Nov 13, 2026
203.72.0.0/21
No anonymizer space · no proxy exits in 30 daysTaiwan Academic Network (TANet) Information Center · space held by Taiwan Network Information Center
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Sep 18, 2026
from AS1659 Taiwan Academic Network (TANet) Information Center, after 10.1 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.72.0.0/16 since May 2005 | AS1659 | Business | 110 3 always on | Taiwan Network Information Center |
Network & registry
Origin network
AS1659
TW
- Name
- Taiwan Academic Network (TANet) Information Center
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- moe.gov.tw
- Website
- www.edu.tw
- 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
- Stable
- First seen
- May 2005
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.72.0.0/21 | AS17712 | /21 | APNIC | Another network |
| 203.72.0.0/16 | AS1659 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.
72. 0. 0/ 14 - Netname
- TWNIC-TW
- Registrant
- Taiwan Network Information Center
- Registrant country
- TW
- Organization
- Taiwan Network Information Center
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 4, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- TW
- Delegated
- Apr 17, 1996
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP