Data as of Nov 6, 2026
123.240.136.0/23
No anonymizer space · no proxy exits in 30 daysTBC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 123.240.136.0/21 since Mar 2016 | AS131596 | Residential | 29 2 always on | TBC | |
| 123.240.0.0/16 since Dec 2018 | AS131596 | Residential | 1,889 161 always on | TBC |
Network & registry
Announced by
Covering announcement 123.240.136.0/22
- Prefix
- 123.240.136.0/22
- Announced by
- AS131596 TBC
- Type
- Residential
- Proxy exits
- 3
- RPKI
- RPKI valid
- Netname
- TBCOM-NET
- Registrant
- TBC
- RIR
- APNIC
Origin network
AS131596
TW
- Name
- TBC
- Type
- Internet provider
- Registered
- Jul 21, 2011
- Domain
- tbc.net.tw
- Website
- www.tbc.net.tw
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
123.240.136.0/22
Routing history
- Pattern
- Stable
- First seen
- Feb 2011
- Current origin since
- Mar 2016 · 11 yr
- Origin networks
- 2
- Last change of origin
- Mar 2016
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 123.240.0.0/15 | AS17709 | /24 | APNIC | Another network |
| 123.240.0.0/15 | AS131596 | /24 | APNIC | RPKI valid |
IRR
Route objects on 123.240.136.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS131596 | RADB | SeedNet Proxy-registered route object (Customer Route: TBC.) | MAINT-AS4780 | Sep 4, 2026 |
Whois
Registration for this announcement
- Range
- 123.
240. 0. 0/ 15 - Netname
- TBCOM-NET
- Registrant
- TBC
- Registrant country
- TW
- Organization
- TBC
- 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 5, 2007
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP