Data as of Nov 9, 2026
103.251.240.0/22
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM China169 Backbone · space held by China Unicom Ningxia province network
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 103.251.240.0/24 since Aug 2016 | AS10206 | Hosting | China Unicom Ningxia province network | |
| 103.251.241.0/24 since Aug 2016 | AS10206 | Hosting | China Unicom Ningxia province network |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 512 | 50% | 2 | |
| Residential | 512 | 50% | 1 |
Network & registry
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
- Mar 2016
- Current origin since
- Mar 2016 · 11 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.251.240.0/22 | AS4837 | /22 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 103.
251. 240. 0/ 22 - Netname
- UNICOM-NX
- Registrant
- China Unicom Ningxia province network
- Registrant country
- CN
- Organization
- China Unicom Ningxia province network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 21, 2023
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Aug 6, 2013
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP