Data as of Nov 8, 2026
120.133.128.0/17
No anonymizer space · no proxy exits in 30 daysIDC, China Telecommunications Corporation · space held by 21ViaNet(China),Inc.
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 |
|---|---|---|---|---|
| 120.133.128.0/20 since Aug 2018 | AS58466 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.144.0/23 since Feb 2020 | AS58466 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.146.0/23 since Sep 2022 | AS58466 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.216.0/21 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.224.0/22 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.228.0/22 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.236.0/24 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.237.0/24 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.238.0/24 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.239.0/24 since Nov 6, 2026 | AS4811 | Residential | 21ViaNet(China),Inc. | |
| 120.133.240.0/21 since Apr 2025 | AS17428 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.240.0/22 since Oct 2024 | AS17428 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.248.0/22 since Apr 2025 | AS17428 | Hosting | 21ViaNet(China),Inc. | |
| 120.133.252.0/22 since Nov 2021 | AS17428 | Hosting | 21ViaNet(China),Inc. |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
32,768 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 27,648 | 84% | 9 | |
| Residential | 5,120 | 16% | 7 |
Network & registry
Announced by
Covering announcement 120.133.0.0/16
- Prefix
- 120.133.0.0/16
- Announced by
- AS23724 IDC, China Telecommunications Corporation
- Type
- Hosting
- Proxy exits
- 3
- RPKI
- No RPKI
- Netname
- CHINA-21VIANET
- Registrant
- 21ViaNet(China),Inc.
- RIR
- APNIC
Origin network
AS23724
CN
- Name
- IDC, China Telecommunications Corporation
- Type
- Hosting
- Registered
- Apr 22, 2003
- Domain
- chinatelecom.cn
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 120.133.0.0/16
120.133.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2008
- Current origin since
- May 2017 · 9.4 yr
- Origin networks
- 3
- Last change of origin
- May 2017
Recorded history
History
- Handoffs
- 3
IRR
Route objects on 120.133.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4835 not the origin | RADB | chinanet/CN2 shaanxi province network | MAINT-AS4835 | Nov 13, 2023 |
| AS17428 not the origin | RADB | Proxy-registered route object | MAINT-HGC-INTL | Oct 2, 2026 |
| AS23724 | RADB | China Telecom Beijing Co. Ltd. | MAINT-AS23724 | Apr 22, 2026 |
| AS56048 not the origin | RADB | CMI (Customer Route) | MAINT-AS58453 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 120.
133. 0. 0/ 16 - 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
- Apr 4, 2008
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP