Data as of Nov 6, 2026
45.250.36.0/23
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM China169 Backbone · space held by Hangzhou Sulian Information Technology Co.,ltd
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin May 2026
from AS4837 CHINA UNICOM China169 Backbone
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
- Nov 2019
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 45.250.36.0/22 | AS4837 | /32 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4837 | RADB | route of Chinaunicom | MAINT-AS10099 | Jun 14, 2024 |
Whois
Registration for this announcement
- Range
- 45.
250. 36. 0/ 22 - Netname
- SULIAN-IDC002
- Registrant
- Hangzhou Sulian Information Technology Co.,ltd
- Registrant country
- CN
- Organization
- Hangzhou Sulian Information Technology Co.,ltd
- 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
- May 16, 2016
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP