Data as of Nov 3, 2026
49.158.56.0/21
No anonymizer space · no proxy exits in 30 daysUnion Broadband Network · space held by TFN Media Co., Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 49.158.0.0/16 since Apr 2011 | AS24164 | Residential | 1,769 204 always on | TFN Media Co., Ltd. | |
| 49.158.0.0/15 since Dec 2023 | AS24164 | Residential | 3,992 421 always on | TFN Media Co., Ltd. |
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 |
|---|---|---|---|---|---|---|
| 49.158.0.0/15 | 131,072 | UBBNET-NET | TFN Media Co., Ltd. | ALLOCATED PORTABLE | — | [email protected] |
Network & registry
Registry
Holder
- Organization
- TFN Media Co., Ltd.
- Range
- 49.158.0.0/15
- Registration type
- ALLOCATED PORTABLE
Origin network
AS24164
TW
- Name
- Union Broadband Network
- Type
- Internet provider
- Registered
- Jul 11, 2005
- Domain
- twmbroadband.com
- Website
- www.twmbroadband.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2024
- Current origin since
- May 2024 · 2.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 49.158.56.0/21 | AS24164 | /21 | APNIC | RPKI valid |
| 49.158.48.0/20 | AS24164 | /20 | APNIC | Too specific |
| 49.158.0.0/16 | AS24164 | /24 | APNIC | RPKI valid |
| 49.158.0.0/16 | AS24164 | /16 | APNIC | Too specific |
| 49.158.0.0/15 | AS24163 | /24 | APNIC | Another network |
| 49.158.0.0/15 | AS24164 | /24 | APNIC | RPKI valid |
| 49.158.0.0/15 | AS24165 | /24 | APNIC | Another network |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 49.158.57.0/24 | AS24164 | RADB | Taiwan Fixed Network Proxy Announcement | MAINT-AS9924 | Apr 17, 2026 |
| 49.158.60.0/24 | AS24164 | RADB | Taiwan Fixed Network Proxy Announcement | MAINT-AS9924 | Apr 17, 2026 |
| 49.158.60.0/24 | AS24164 | NTTCOM | Taiwan Fixed Network Proxy Announcement | MAINT-AS9924 | May 3, 2012 |
| 49.158.61.0/24 | AS24164 | RADB | Taiwan Fixed Network Proxy Announcement | MAINT-AS9924 | Apr 17, 2026 |
Whois
Registration for this announcement
- Range
- 49.158.56.0/21
- Netname
- UBBNET-NET
- Registrant
- TFN Media Co., Ltd.
- Registrant country
- TW
- Organization
- TFN Media Co., Ltd.
- Org country
- TW
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Nov 23, 2010
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- IRT-UBBNET-TW
- Handle
- IRT-UBBNET-TW