Data as of Nov 8, 2026
61.50.244.0/24
No anonymizer space · no proxy exits in 30 daysCHINA UNICOM China169 Backbone · space held by China Unicom Beijing province network
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 61.50.192.0/18 since Aug 2007 | AS4808 | Residential | 2 | China Unicom Beijing province network via China Netcom Group Beijing Corporation | |
| 61.50.128.0/17 since Aug 2007 | AS4808 | Residential | 24 1 always on | China Unicom Beijing province network via China Netcom Group Beijing Corporation | |
| 61.50.0.0/16 since Jul 2006 | AS4808 | Residential | 43 3 always on | China Unicom Beijing province 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 |
|---|---|---|---|---|---|---|
| 61.48.0.0/14 | 262,144 | UNICOM-BJ | China Unicom Beijing province network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 61.50.128.0/17 | 32,768 | CNCBTJQ-NET | China Netcom Group Beijing Corporation | ALLOCATED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-BJ |
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
- China Unicom Beijing province network
- Range
- 61.
48. 0. 0/ 14 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- China Netcom Group Beijing Corporation
- Reallocated range
- 61.
50. 128. 0/ 17 - 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
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.50.244.0/24 | AS4837 | /24 | APNIC | RPKI valid |
| 61.50.192.0/18 | AS4808 | /18 | APNIC | Another network |
| 61.50.128.0/17 | AS4808 | /17 | APNIC | Another network |
| 61.50.0.0/16 | AS4808 | /16 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 61.
50. 128. 0/ 17 - Netname
- CNCBTJQ-NET
- Registrant
- China Netcom Group Beijing Corporation
- Registrant country
- CN
- Organization
- China Netcom Group Beijing Corporation
- Org country
- CN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 4, 2008
- Maintainer
- MAINT-CNCGROUP-BJ
- RIR
- APNIC
- Country
- CN
- Delegated
- Jun 28, 2001
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP