Data as of Nov 7, 2026
121.52.222.0/24
No anonymizer space · no proxy exits in 30 daysChina Networks Inter-Exchange · space held by CNISP-Union Technology (Beijing) Co., Ltd
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin Nov 6, 2026
from AS4808 China Unicom Beijing Province Network
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 |
|---|---|---|---|---|---|---|
| 121.52.208.0/20 | 4,096 | CNISP-UNION | CNISP-Union Technology (Beijing) Co., Ltd | ALLOCATED PORTABLE | — | ipas@ |
| └ 121.52.216.0/21 | 2,048 | TopnewNET | Beijing Topnew Info&Tech co., LTD. | ALLOCATED NON-PORTABLE | — | support@ |
Network & registry
Announced by
Covering announcement 121.52.208.0/20
- Prefix
- 121.52.208.0/20
- Announced by
- AS4847 China Networks Inter-Exchange
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- CNISP-UNION
- Registrant
- CNISP-Union Technology (Beijing) Co., Ltd
- RIR
- APNIC
Origin network
AS4847
CN
- Name
- China Networks Inter-Exchange
- Type
- Internet provider
- Registered
- Sep 10, 1996
- Domain
- bta.net.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 121.52.208.0/20
121.52.208.0/20
Routing history
- Pattern
- Rotating
- First seen
- Dec 2007
- Current origin since
- Nov 6, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Sep 18, 2026
Recorded history
History
- Handoffs
- 2
- Also announced by
- 4808
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.52.208.0/20 | AS4808 | /24 | APNIC | Another network |
| 121.52.208.0/20 | AS4847 | /24 | APNIC | RPKI valid |
| 121.52.208.0/20 | AS24404 | /24 | APNIC | Another network |
| 121.52.208.0/20 | AS56048 | /24 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 121.
52. 208. 0/ 20 - Netname
- CNISP-UNION
- Registrant
- CNISP-Union Technology (Beijing) Co., Ltd
- Registrant country
- CN
- Organization
- CNISP-Union Technology (Beijing) 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
- Nov 7, 2007
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP