Data as of Nov 4, 2026
203.77.40.0/21
No anonymizer space · no proxy exits in 30 daysUnion Broadband Network · space held by Taiwan Fixed Network Co., LTD.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.77.32.0/19 since Dec 2024 | AS24164 | Residential | 6 | Taiwan Fixed Network Co., LTD. | |
| 203.77.0.0/18 since Dec 2024 | AS24164 | Residential | 6 | Taiwan Fixed Network Co., LTD. |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.77.40.0/22 since Jul 2026 | AS24165 | Residential | Taiwan Fixed Network Co., LTD. | |
| 203.77.44.0/22 since Jul 2026 | AS24165 | Residential | Taiwan Fixed Network Co., LTD. |
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 |
|---|---|---|---|---|---|---|
| 203.77.0.0/17 | 32,768 | TFN-TW-NET | Taiwan Fixed Network Co., LTD. | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 203.77.32.0/20
- Prefix
- 203.77.32.0/20
- Announced by
- AS24164 Union Broadband Network
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- TFN-NET
- Registrant
- Taiwan Fixed Network CO.,LTD.
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Taiwan Fixed Network Co., LTD.
- Range
- 203.
77. 0. 0/ 17 - 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
203.77.32.0/20
Routing history
- Pattern
- Stable
- First seen
- Feb 2025
- Current origin since
- Feb 2025 · 1.7 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.77.32.0/19 | AS9924 | /24 | APNIC | Another network |
| 203.77.32.0/19 | AS24164 | /24 | APNIC | RPKI valid |
| 203.77.0.0/18 | AS4662 | /24 | APNIC | Another network |
| 203.77.0.0/18 | AS24164 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.
77. 32. 0/ 19 - Netname
- TFN-NET
- Registrant
- Taiwan Fixed Network CO.,LTD.
- Registrant country
- TW
- Organization
- Taiwan Fixed Network CO.,LTD.
- Org country
- TW
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Sep 9, 1998
- Status
- assigned