Data as of Nov 5, 2026
211.148.30.0/23
No anonymizer space · no proxy exits in 30 days21Vianet.Co.,Ltd · space held by China Network Information Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 211.148.0.0/18 since Aug 2016 | AS4812 | Residential | China Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 211.148.0.0/14 | 262,144 | CNNIC | China Network Information Center | ALLOCATED PORTABLE | — | ipas@ |
| └ 211.148.28.0/22 | 1,024 | CHINA-21VIANET | 21ViaNet(China),Inc. | ALLOCATED PORTABLE | — | ipas@ |
Network & registry
IPv4 market
Holder
- Organization
- China Network Information Center
- Range
- 211.
148. 0. 0/ 14 - Registration type
- ALLOCATED PORTABLE
Origin network
AS17428
CN
- Name
- 21Vianet.Co.,Ltd
- Type
- Hosting
- Registered
- Oct 19, 2000
- Domain
- 21vianet.com
- Website
- www.en.21vianet.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2024
- Current origin since
- Oct 2024 · 2.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 211.148.28.0/22 | AS4811 | /32 | APNIC | Another network |
| 211.148.28.0/22 | AS17428 | /32 | APNIC | RPKI valid |
| 211.148.28.0/22 | AS17621 | /32 | APNIC | Another network |
| 211.148.28.0/22 | AS18244 | /32 | APNIC | Another network |
| 211.148.28.0/22 | AS24400 | /32 | APNIC | Another network |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 211.148.31.0/24 | AS17428 | NTTCOM | 21vianet-noc IP | MAINT-AS17428 | Feb 1, 2016 |
Whois
Registration for this announcement
- Range
- 211.
148. 28. 0/ 22 - Netname
- CHINA-21VIANET
- Registrant
- 21ViaNet(China),Inc.
- Registrant country
- CN
- Organization
- 21ViaNet(China),Inc.
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 16, 2021
- Maintainer
- MAINT-CNNIC-AP
- RIR
- APNIC
- Country
- CN
- Delegated
- Jun 22, 2001
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP