Data as of Nov 10, 2026
210.83.2.0/25
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM Industrial Internet Backbone · space held by China Unicom IP network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 210.83.0.0/16 since May 2005 | AS9929 | Internet provider | 15 | China Unicom IP network |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 210.82.0.0/15 | 131,072 | UNICOM-CN | China Unicom IP network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 210.83.0.0/20 | 4,096 | UNICOM-SN | China Unicom Shannxi province network | ALLOCATED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-CN |
| └ 210.83.2.0/25 | 128 | LMDS-CUSTOMER | xi'an city | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-SN |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 210.83.0.0/20
- Prefix
- 210.83.0.0/20
- Announced by
- AS9929 CHINA UNICOM Industrial Internet Backbone
- Type
- Internet provider
- RPKI
- RPKI valid
- Netname
- UNICOM-SN
- Registrant
- China Unicom Shannxi province network
- RIR
- APNIC
IPv4 market
Holder
- Organization
- China Unicom IP network
- Range
- 210.
82. 0. 0/ 15 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- China Unicom Shannxi province network
- Reallocated range
- 210.
83. 0. 0/ 20 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS9929
CN
- Name
- CHINA UNICOM Industrial Internet Backbone
- Type
- Internet provider
- Registered
- Apr 5, 2000
- Domain
- chinaunicom.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
210.83.0.0/20
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 |
|---|---|---|---|---|
| 210.83.0.0/20 | AS9929 | /20 | APNIC | RPKI valid |
| 210.83.0.0/16 | AS9929 | /16 | APNIC | Too specific |
IRR
Route objects on 210.83.0.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4837 not the origin | APNIC | CNC Group CHINA169 Shanxi Province Network | MAINT-CNCGROUP-RR | Sep 4, 2008 |
Whois
Registration for this announcement
- Range
- 210.
83. 0. 0/ 20 - Netname
- UNICOM-SN
- Registrant
- China Unicom Shannxi province network
- Registrant country
- CN
- Organization
- China Unicom Shannxi province network
- Org country
- CN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Apr 1, 2009
- Maintainer
- MAINT-CNCGROUP
- RIR
- APNIC
- Country
- CN
- Delegated
- Oct 11, 2000
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP