Data as of Nov 10, 2026
221.199.82.0/24
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM Industrial Internet Backbone · space held by China Unicom Ningxia province network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 221.199.0.0/17 since Feb 2006 | AS4837 | Residential | 45 2 always on | China Unicom Ningxia province network |
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 |
|---|---|---|---|---|---|---|
| 221.199.0.0/17 | 32,768 | UNICOM-NX | China Unicom Ningxia province network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 221.199.80.0/22 | 1,024 | NX-YC-Youxiantong | unknown | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-NX |
| └ 221.199.82.0/23 | 512 | NX-YC-Youxiantong | unknown | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ via NX-YC-Youxiantong |
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
Registry
Holder
- Organization
- China Unicom Ningxia province network
- Range
- 221.
199. 0. 0/ 17 - Registration type
- ALLOCATED 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
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2023
- Current origin since
- Aug 2023 · 3.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 221.199.82.0/24 | AS9929 | /24 | APNIC | RPKI valid |
| 221.199.0.0/17 | AS4837 | /17 | APNIC | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9929 | APNIC | China Unicom | MAINT-CNCGROUP-RR | Aug 28, 2023 |
Whois
Registration for this announcement
- Range
- 221.
199. 82. 0/ 23 - Netname
- NX-YC-Youxiantong
- Registrant country
- CN
- Organization
- Not stated by the registry
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Aug 18, 2009
- Maintainer
- MAINT-CNCGROUP-NX
- RIR
- APNIC
- Country
- CN
- Delegated
- Feb 7, 2006
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP