Data as of Nov 7, 2026
121.50.176.0/23
No anonymizer space · no proxy exits in 30 daysDongFong Technology Co. Ltd. · space held by Chuan Chan Co. Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 121.50.176.0/21 since Jun 2022 | AS18046 | Business | Chuan Chan Co. Ltd. | ||
| 121.50.176.0/20 since Aug 2012 | AS18046 | Business | 1 | Chuan Chan Co. Ltd. |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 121.50.176.0/24 since Apr 2026 | AS18046 | Business | Chuan Chan Co. Ltd. | |
| 121.50.177.0/24 since Apr 2026 | AS18046 | Business | Chuan Chan Co. Ltd. |
Network & registry
Announced by
Covering announcement 121.50.176.0/22
- Prefix
- 121.50.176.0/22
- Announced by
- AS18046 DongFong Technology Co. Ltd.
- Type
- Business
- RPKI
- RPKI valid
- Netname
- CHUAN-CHAN-NET
- Registrant
- Chuan Chan Co. Ltd.
- RIR
- APNIC
Origin network
AS18046
TW
- Name
- DongFong Technology Co. Ltd.
- Type
- Internet provider
- Registered
- Nov 9, 2001
- Domain
- dongfong.com.tw
- Website
- www.dongfong.com.tw
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
121.50.176.0/22
Routing history
- Pattern
- Reactivated
- First seen
- Apr 2010
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 2
- Last change of origin
- Apr 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.50.176.0/20 | AS18046 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 121.
50. 176. 0/ 20 - Netname
- CHUAN-CHAN-NET
- Registrant
- Chuan Chan Co. Ltd.
- Registrant country
- TW
- Organization
- Chuan Chan 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
- Oct 4, 2007
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP