Data as of Nov 7, 2026
123.58.0.0/21
No anonymizer space · no proxy exits in 30 daysIDC, China Telecommunications Corporation · space held by China Unicom Cloud Data Company Limited
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin Nov 6, 2026
from AS133119 China Unicom IP network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 123.58.0.0/19 since Aug 2016 | AS23724 | Hosting |
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 |
|---|---|---|---|---|---|---|
| 123.58.0.0/20 | 4,096 | CU-CDC | China Unicom Cloud Data Company Limited | ALLOCATED PORTABLE | Aug 28, 2016 | xingxin2@ |
| └ 123.58.0.0/21 | 2,048 | ZLLX | Beijing Zhonglianlixin Technology Co., Ltd. | ASSIGNED NON-PORTABLE | — | ipas@ |
Network & registry
Announced by
Covering announcement 123.58.0.0/20
- Prefix
- 123.58.0.0/20
- Announced by
- AS23724 IDC, China Telecommunications Corporation
- Type
- Hosting
- RPKI
- RPKI invalid (origin)
- Netname
- CU-CDC
- Registrant
- China Unicom Cloud Data Company Limited
- RIR
- APNIC
Origin network
AS23724
CN
- Name
- IDC, China Telecommunications Corporation
- Type
- Hosting
- Registered
- Apr 22, 2003
- Domain
- chinatelecom.cn
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
123.58.0.0/20
Routing history
- Pattern
- Rotating
- First seen
- Aug 2016
- Current origin since
- Nov 6, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 1
- Also announced by
- 133119
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 123.58.0.0/20 | AS133119 | /20 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 123.
58. 0. 0/ 20 - Netname
- CU-CDC
- Registrant
- China Unicom Cloud Data Company Limited
- Registrant country
- CN
- Organization
- China Unicom Cloud Data Company Limited
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 28, 2023
- Maintainer
- MAINT-CNNIC-AP
- RIR
- APNIC
- Country
- CN
- Delegated
- Jan 16, 2007
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP