Data as of Nov 3, 2026
210.51.44.0/24
No anonymizer space · no proxy exits in 30 daysChina Unicom Shanghai FuTe IDC network · space held by China Unicom IP network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 210.51.0.0/16 since May 2005 | AS9929 | Internet provider | 62 | China Unicom IP 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 |
|---|---|---|---|---|---|---|
| 210.51.0.0/16 | 65,536 | UNICOM-CN | China Unicom IP network | ALLOCATED PORTABLE | — | [email protected] |
| └ 210.51.20.0 - 210.51.63.255 | 11,264 | CNC-SH-IDC | Shanghai Caohejing IDC of China Netcom | ALLOCATED NON-PORTABLE | — | [email protected] via UNICOM-CN |
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 IP network
- Range
- 210.51.0.0/16
- Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Shanghai Caohejing IDC of China Netcom
- Reallocated range
- 210.51.20.0 - 210.51.63.255
- Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS140979
CN
- Name
- China Unicom Shanghai FuTe IDC network
- Type
- Hosting
- Registered
- Aug 5, 2020
- Domain
- chinaunicom.cn
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Sep 2006
- Current origin since
- Jan 2022 · 4.8 yr
- Origin networks
- 3
- Last change of origin
- Jan 2022
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 210.51.20.0 - 210.51.63.255
- Netname
- CNC-SH-IDC
- Registrant
- Shanghai Caohejing IDC of China Netcom
- Registrant country
- CN
- Organization
- Shanghai Caohejing IDC of China Netcom
- 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 11, 2000
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE CUCN
- Handle
- AC1718-AP