Data as of Nov 7, 2026
123.0.32.0/19
No anonymizer space · no proxy exits in 30 daysUnion Broadband Network
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 123.0.32.0/20 since Apr 2023 | AS24164 | Residential | Union Broadband Network | |
| 123.0.32.0/21 since May 2024 | AS24164 | Residential | Union Broadband Network | |
| 123.0.40.0/23 since May 2024 | AS24164 | Residential | Union Broadband Network | |
| 123.0.42.0/24 since May 2024 | AS24164 | Residential | Union Broadband Network | |
| 123.0.44.0/22 since May 2024 | AS24164 | Residential | Union Broadband Network | |
| 123.0.48.0/20 since Apr 2023 | AS24164 | Residential | Union Broadband Network | |
| 123.0.48.0/21 since May 2024 | AS24164 | Residential | Union Broadband Network | |
| 123.0.56.0/21 since May 2024 | AS24164 | Residential | Union Broadband Network |
Network & registry
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
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2006
- Current origin since
- Apr 2023 · 3.5 yr
- Origin networks
- 2
- Last change of origin
- Apr 2023
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4662 not the origin | NTTCOM | Taiwan Fixed Network | MAINT-AS9924 | Jan 4, 2010 |
| AS4662 not the origin | RADB | Taiwan Fixed Network Proxy Announcement | MAINT-AS9924 | Apr 17, 2026 |
| AS24164 | NTTCOM | Proxy-registered route object(Customer) | MAINT-AS9924 | May 10, 2023 |
| AS24164 | RADB | Proxy-registered route object(Customer) | MAINT-AS9924 | Apr 17, 2026 |
Whois
Registration for this announcement
- Range
- 123.
0. 32. 0/ 19 - Netname
- UBBNET-NET
- Registrant
- Union Broadband Network
- Registrant country
- TW
- Organization
- Union Broadband Network
- 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
- Oct 19, 2006
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP