Data as of Nov 11, 2026
219.158.0.0/20
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM China169 Backbone · space held by CNC group
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 219.158.0.0/24 since Dec 2022 | AS4837 | Internet provider | CNC group via Backbone of China Unicom |
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 |
|---|---|---|---|---|---|---|
| 219.158.0.0/16 | 65,536 | CNCGROUP | CNC group | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 219.158.0.0/19 | 8,192 | ChinaUnicom-BACKBONE | Backbone of China Unicom | ALLOCATED NON-PORTABLE | — | hqs-ipabuse@ via CNCGROUP |
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
IPv4 market
Holder
- Organization
- CNC group
- Range
- 219.
158. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Backbone of China Unicom
- Reallocated range
- 219.
158. 0. 0/ 19 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS4837
CN
- Name
- CHINA UNICOM China169 Backbone
- Type
- Internet provider
- Registered
- Sep 17, 2001
- Domain
- chinaunicom.cn
- Website
- www.chinaunicom.cn/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
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 |
|---|---|---|---|---|
| 219.158.0.0/20 | AS4837 | /20 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 219.
158. 0. 0/ 19 - Netname
- ChinaUnicom-BACKBONE
- Registrant
- Backbone of China Unicom
- Registrant country
- CN
- Organization
- Backbone of China Unicom
- Org country
- CN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 19, 2009
- Maintainer
- MAINT-CNCGROUP
- RIR
- APNIC
- Country
- CN
- Delegated
- Mar 21, 2002
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP