Data as of Nov 9, 2026
210.21.226.0/24
No anonymizer space · no proxy exits in 30 daysChina Unicom Shenzen network · space held by China Unicom IP network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 210.21.192.0/18 since May 2005 | AS17623 | Residential | 22 1 always on | China Unicom IP network via shenzhen branch, china netcom corp |
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 |
|---|---|---|---|---|---|---|
| 210. | 131,072 | UNICOM-CN | China Unicom IP network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 210.21.0.0/16 | 65,536 | UNICOM-CN | China Unicom IP network | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ |
| └ 210.21.192.0/18 | 16,384 | SHENZHEN-CNC | shenzhen branch, china netcom corp | ALLOCATED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-CN |
| └ 210. | 4 | SHENZHEN-ZHUOYUE-WUYE | shenzhen city | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ via SHENZHEN-CNC |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 252 | 98% | 2 | |
| Business | 4 | 1.6% | 1 |
Network & registry
IPv4 market
Holder
- Organization
- China Unicom IP network
- Range
- 210.
21. 0. 0 - 210. 22. 255. 255 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- shenzhen branch, china netcom corp
- Reallocated range
- 210.
21. 192. 0/ 18 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS17623
CN
- Name
- China Unicom Shenzen network
- Type
- Internet provider
- Registered
- Jan 18, 2001
- Domain
- 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
- Sep 2012
- Current origin since
- Aug 2025 · 1.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 210.21.226.0/24 | AS17623 | /24 | APNIC | RPKI valid |
| 210.21.192.0/18 | AS17623 | /18 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 210.
21. 192. 0/ 18 - Netname
- SHENZHEN-CNC
- Registrant
- shenzhen branch, china netcom corp
- Registrant country
- CN
- Organization
- shenzhen branch, china netcom corp
- Org country
- CN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 4, 2008
- Maintainer
- MAINT-CN-ZM28
- RIR
- APNIC
- Country
- CN
- Delegated
- Oct 17, 2000
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP