Data as of Nov 11, 2026
61.67.0.0/21
No anonymizer space · no proxy exits in 30 daysGreat Taipei Broadband Company Ltd. · space held by Taiwan Network Information Center
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 61.67.0.0/22 since May 2009 | AS18413 | Internet provider | Taiwan Network Information Center | |
| 61.67.4.0/22 since May 2009 | AS18413 | Internet provider | Taiwan Network Information Center | |
| 61.67.4.0/24 since Oct 2024 | AS18413 | Internet provider | 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 |
|---|---|---|---|---|---|---|
| 61.67.0.0/18 | 16,384 | TWNIC-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
| └ 61.67.0.0/20 | 4,096 | GTBC-NET | Great Taipei Broadband Co.,Ltd | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 61.67.0.0/20
- Prefix
- 61.67.0.0/20
- Announced by
- AS18413 Great Taipei Broadband Company Ltd.
- Type
- Internet provider
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- GTBC-NET
- Registrant
- Great Taipei Broadband Co.,Ltd
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Taiwan Network Information Center
- Range
- 61.
67. 0. 0/ 18 - 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 61.67.0.0/20
61.67.0.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.67.0.0/20 | AS18413 | /24 | APNIC | RPKI valid |
IRR
Route objects on 61.67.0.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4747 not the origin | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jul 6, 2005 |
| AS9505 not the origin | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jun 4, 2004 |
| AS18413 | NTTCOM | Taiwan Telecommunication Network Services Co. Ltd. | MAINT-AS9924 | Jul 31, 2003 |
| AS18413 | RADB | Taiwan Telecommunication Network Services Co. Ltd. | MAINT-AS9924 | Apr 17, 2026 |
Whois
Registration for this announcement
- Range
- 61.
67. 0. 0/ 20 - 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