Data as of Nov 8, 2026
124.251.224.0/19
No anonymizer space · no proxy exits in 30 daysIDC, China Telecommunications Corporation · space held by 21ViaNet(China),Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 124.251.0.0/16 since May 2020 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.250.0.0/15 since May 2017 | AS23724 | Hosting | 21ViaNet(China),Inc. |
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 |
|---|---|---|---|---|
| 124.251.228.0/22 since Nov 6, 2026 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.230.0/24 since Dec 2020 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.231.0/24 since Aug 2025 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.236.0/22 since Nov 6, 2026 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.237.0/24 since Nov 2016 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.238.0/24 since Oct 2014 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.239.0/24 since Oct 2014 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.240.0/22 since Nov 6, 2026 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.240.0/24 since Oct 2014 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.241.0/24 since Jan 2016 | AS4835 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.244.0/24 since Oct 2014 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.252.0/24 since May 2019 | AS4835 | Hosting | 21ViaNet(China),Inc. |
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 |
|---|---|---|---|---|---|---|
| 124.250.0.0/15 | 131,072 | CHINA-21VIANET | 21ViaNet(China),Inc. | ALLOCATED PORTABLE | — | ipas@ |
| └ 124.251.0.0/16 | 65,536 | CHINA-21VIANET | 21ViaNet(China),Inc. | ALLOCATED PORTABLE | — | ipas@ |
Network & registry
Announced by
Covering announcement 124.251.192.0/18
- Prefix
- 124.251.192.0/18
- Announced by
- AS23724 IDC, China Telecommunications Corporation
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- CHINA-21VIANET
- Registrant
- 21ViaNet(China),Inc.
- RIR
- APNIC
Registry
Holder
- Organization
- 21ViaNet(China),Inc.
- Range
- 124.
250. 0. 0/ 15 - Registration type
- ALLOCATED PORTABLE
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
Covering aggregate above, the prefix's own history below
124.251.192.0/18
Routing history
- Pattern
- Stable
- First seen
- May 2015
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Jan 2018
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 124.251.0.0/16 | AS4808 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS4835 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS4847 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS9308 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS9802 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS9808 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS17428 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS23724 | /32 | APNIC | RPKI valid |
| 124.251.0.0/16 | AS56048 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS59020 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS133111 | /32 | APNIC | Another network |
| 124.251.0.0/16 | AS141679 | /32 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 124.
251. 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
- May 12, 2006
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP