Data as of Nov 4, 2026
203.65.0.0/24
No anonymizer space · no proxy exits in 30 daysData Communication Business Group · space held by Taiwan Network Information Center
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.64.0.0/14 | 262,144 | TWNIC-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | [email protected] |
| └ 203.65.0.0/17 | 32,768 | HEALTHNET-NET | Ministry of Health and Welfare | ALLOCATED PORTABLE | — | [email protected] |
| └ 203.65.0.0/24 | 256 | CIDR-BLK3-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | [email protected] |
Network & registry
Announced by
Covering announcement 203.65.0.0/17
- Prefix
- 203.65.0.0/17
- Announced by
- AS4782 Data Communication Business Group
- Type
- Business
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- HEALTHNET-NET
- Registrant
- Ministry of Health and Welfare
- RIR
- APNIC
Registry
Holder
- Organization
- Taiwan Network Information Center
- Range
- 203.64.0.0/14
- Registration type
- ALLOCATED PORTABLE
Origin network
AS4782
TW
- Name
- Data Communication Business Group
- Type
- Internet provider
- Registered
- Jul 9, 1996
- Domain
- cht.com.tw
- Website
- www.cht.com.tw/en/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 203.65.0.0/17
203.65.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.65.0.0/17 | AS4782 | /17 | APNIC | RPKI valid |
IRR
Route objects on 203.65.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4782 | RADB | Chunghwa Telecom Co., Ltd. (GSNet) | MAINT-AS3462 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 203.65.0.0/17
- Netname
- HEALTHNET-NET
- Registrant
- Ministry of Health and Welfare
- Registrant country
- TW
- Organization
- Ministry of Health and Welfare
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 24, 2026
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Dec 14, 1994
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- TWNIC ROLE-HEALTHNET
- Handle
- TR390-AP