Data as of Nov 6, 2026
61.65.192.0/20
No anonymizer space · no proxy exits in 30 daysGreat Taipei Broadband Company Ltd. · space held by 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 |
|---|---|---|---|---|---|---|
| 61.64.0.0/15 | 131,072 | TWNIC-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
| └ 61.65.192.0/18 | 16,384 | GTBC-NET | Great Taipei Broadband Co.,Ltd | ALLOCATED PORTABLE | — | hostmaster@ |
| └ 61.65.192.0/19 | 8,192 | GTBC-NET | Great Taipei Broadband Co.,Ltd | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Taiwan Network Information Center
- Range
- 61.
64. 0. 0/ 15 - Registration type
- ALLOCATED PORTABLE
Origin network
AS18413
TW
- Name
- Great Taipei Broadband Company Ltd.
- Type
- Internet provider
- Registered
- Dec 20, 2002
- Domain
- gtbc.com.tw
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2009
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.65.192.0/20 | AS18413 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 61.
65. 192. 0/ 19 - Netname
- GTBC-NET
- Registrant
- Great Taipei Broadband Co.,Ltd
- Registrant country
- TW
- Organization
- Great Taipei Broadband Co.,Ltd
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 7, 2025
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Feb 21, 2001
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP