Data as of Nov 7, 2026
211.73.64.0/19
No anonymizer space · no proxy exits in 30 daysNational Center for High-performance Computing · space held by Taiwan Network Information Center
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 211.73.68.0/23 | AS7539 | Business | Taiwan Network Information Center | |
| 211.73.72.0/24 | AS7539 | Business | Taiwan Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 211.72.0.0/14 | 262,144 | TWNIC-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
| └ 211.73.64.0/19 | 8,192 | NBEN-TW | National Center for High-Performance Computing | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Taiwan Network Information Center
- Range
- 211.
72. 0. 0/ 14 - Registration type
- ALLOCATED PORTABLE
Origin network
AS7539
TW
- Name
- National Center for High-performance Computing
- Type
- Education
- Registered
- Mar 22, 1997
- Domain
- nchc.org.tw
- Website
- www.twaren.net/english/
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2007
- Current origin since
- Mar 2007 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 211.73.64.0/19 | AS7539 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7539 | APNIC | Taiwan Network Information Center | MAINT-TW-TWNIC | Nov 6, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 211.73.86.0/24 | AS18414 | APNIC | National Applied Research Laboratories | MAINT-TW-TWNIC | Jun 5, 2026 |
Whois
Registration for this announcement
- Range
- 211.
73. 64. 0/ 19 - Netname
- NBEN-TW
- Registrant
- National Center for High-Performance Computing
- Registrant country
- TW
- Organization
- National Center for High-Performance Computing
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 4, 2021
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Nov 23, 1999
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP