Data as of Nov 3, 2026
124.251.48.0/22
No anonymizer space · no proxy exits in 30 daysAbitcool(China) Inc. · space held by 21ViaNet(China),Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin Sep 18, 2026
from AS4847 China Networks Inter-Exchange, after 6 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 124.251.32.0/19 since Sep 18, 2026 | AS4808 | Residential | 21ViaNet(China),Inc. | |
| 124.251.0.0/18 since Aug 2016 | AS23724 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.0.0/17 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 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. |
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 |
|---|---|---|---|---|---|---|
| 124.250.0.0/15 | 131,072 | CHINA-21VIANET | 21ViaNet(China),Inc. | ALLOCATED PORTABLE | — | [email protected] |
| └ 124.251.0.0/16 | 65,536 | CHINA-21VIANET | 21ViaNet(China),Inc. | ALLOCATED PORTABLE | — | [email protected] |
Network & registry
Registry
Holder
- Organization
- 21ViaNet(China),Inc.
- Range
- 124.250.0.0/15
- Registration type
- ALLOCATED PORTABLE
Origin network
AS9802
CN
- Name
- Abitcool(China) Inc.
- Type
- Hosting
- Registered
- Jan 10, 2000
- Domain
- 21viamail.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2019
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 3
- Last change of origin
- Sep 18, 2026
Recorded history
History
- Handoffs
- 2
- Also announced by
- 9308
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 | RPKI valid |
| 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 | Another network |
| 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 |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS56048 not the origin | RADB | CMI (Customer Route) | MAINT-AS58453 | May 25, 2024 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 124.251.48.0/24 | AS4835 | RADB | chinanet/CN2 shaanxi province network | MAINT-AS4835 | Nov 13, 2023 |
| 124.251.49.0/24 | AS17428 | NTTCOM | 21VIANET-IP | MAINT-AS17428 | Oct 13, 2016 |
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
- [email protected]
- Name
- ABUSE CNNICCN
- Handle
- AC1601-AP