Data as of Nov 10, 2026
221.
- Proxy activity
- Not seen in 30 days
- Type
- Business
- Risk
- 0 / 100 · Low
- Announced by
- AS17816China Unicom IP network China169 Guangdong provinceInternet provider
- Announcement
- 221.4.0.0/16RPKI valid
- Company
- huacai
- Location
- Guangzhou, Guangdong, China
Network & registry
Announced by
Announcement
- Prefix
- 221.4.0.0/16
- Announced by
- AS17816 China Unicom IP network China169 Guangdong province
- Type
- Residential
- Proxy exits
- 280
- Always-on exits
- 9
- RPKI
- RPKI valid
Origin network
AS17816
CN
- Name
- China Unicom IP network China169 Guangdong province
- Type
- Internet provider
- Registered
- Jul 11, 2001
- Domain
- chinaunicom.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 221.4.0.0/16
221.4.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 221.4.0.0/16 | AS17816 | /16 | APNIC | RPKI valid |
Whois
Registration for this address
- Range
- 221.
4. 0. 0 - 221. 5. 127. 255 - Netname
- UNICOM-GD
- Registrant
- China Unicom Guangdong province network
- Registrant country
- CN
- Organization
- China Unicom Guangdong province network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 22, 2025
- Maintainer
- APNIC-HM
- Sub-assignment
- 221.
4. 148. 92/ 32 - RIR
- APNIC
- Country
- CN
- Delegated
- Jan 8, 2003
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP