Data as of Nov 8, 2026
223.192.0.0/15
No anonymizer spaceComputer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 223.193.0.0/20 since Jan 2021 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.16.0/22 since Mar 2021 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.20.0/24 since Mar 2021 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.33.0/24 since Apr 2021 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.34.0/24 since Dec 2021 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.36.0/24 since Aug 2022 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.40.0/21 since Jul 2022 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | |
| 223.193.52.0/24 since Apr 2025 | AS7497 | Business | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) |
Network & registry
Registry
Holder
- Organization
- Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
- Handle
- ORG-CA107-AP
- Range
- 223.
192. 0. 0/ 15 - Registration type
- ALLOCATED PORTABLE
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2010
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 223.192.0.0/15 | AS7497 | /15 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 223.192.0.0/23 | AS7497 | APNIC | Route originated from CSTNET's customers | MAINT-CSTNET-CN | Oct 6, 2023 |
Whois
Registration for this announcement
- Range
- 223.
192. 0. 0/ 15 - Netname
- CSTNET-CN
- Registrant country
- CN
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 12, 2023
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Jul 28, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse-ip@
cstnet. cn - Name
- ABUSE CSTNETCN
- Handle
- AC2741-AP