Data as of Nov 8, 2026
121.50.183.0/24
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. |
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 |
|---|---|---|---|---|---|---|
| 121.50.176.0/20 | 4,096 | CHUAN-CHAN-NET | Chuan Chan Co. Ltd. | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Registry
Holder
- Organization
- Chuan Chan Co. Ltd.
- Range
- 121.
50. 176. 0/ 20 - Registration type
- ALLOCATED PORTABLE
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
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2016
- Current origin since
- Jan 2016 · 11 yr
- Origin networks
- 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. 183. 0/ 24 - Netname
- Chuan-Chan-net
- Registrant
- Chuan Chan Co. Ltd.
- Registrant country
- TW
- Organization
- Chuan Chan Co. Ltd.
- Org country
- TW
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Oct 4, 2007
- Status
- assigned
Report abuse
Abuse contact
- ix@
chuan-chan. com. tw - Name
- IRT-CHUAN-CHAN-TW
- Handle
- IRT-CHUAN-CHAN-TW