Data as of Nov 3, 2026
223.167.166.0/23
No anonymizer space · no proxy exits in 30 daysChina Unicom Shanghai network · space held by CHINA UNICOM Shanghai city network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 223.167.0.0/16 since Aug 2010 | AS17621 | Residential | 1,043 34 always on | CHINA UNICOM Shanghai city network |
Network & registry
Origin network
AS17621
CN
- Name
- China Unicom Shanghai network
- Type
- Internet provider
- Registered
- Jan 18, 2001
- Domain
- chinaunicom.cn
- Website
- www.chinaunicom.cn
- 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
- Dec 2021
- Current origin since
- Dec 2021 · 4.9 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 223.167.166.0/23 | AS17621 | /23 | APNIC | RPKI valid |
| 223.167.0.0/16 | AS17621 | /16 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 223.166.0.0/15
- Netname
- UNICOM-SH
- Registrant
- CHINA UNICOM Shanghai city network
- Registrant country
- CN
- Organization
- CHINA UNICOM Shanghai city network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 22, 2025
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Jul 13, 2010
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE CUCN
- Handle
- AC1718-AP