Data as of Nov 3, 2026
124.251.0.0/16
No anonymizer space · no proxy exits in 30 daysAbitcool(China) Inc. · space held by 21ViaNet(China),Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 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 |
|---|---|---|---|---|
| 124.251.0.0/17 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.0.0/18 since Aug 2016 | AS23724 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.8.0/23 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.32.0/19 since Sep 18, 2026 | AS4808 | Residential | 21ViaNet(China),Inc. | |
| 124.251.44.0/22 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.48.0/22 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.64.0/18 since Oct 2016 | AS23724 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.64.0/19 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.96.0/19 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.96.0/23 since Mar 2017 | AS9308 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.110.0/23 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.110.0/24 since May 2025 | AS4835 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.120.0/23 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.128.0/18 since Aug 2016 | AS23724 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.128.0/21 since Sep 18, 2026 | AS9802 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.132.0/22 since Oct 22, 2026 | AS4835 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.134.0/23 since Oct 10, 2026 | AS4835 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.192.0/18 since Aug 2016 | AS23724 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.215.0/24 since Apr 2026 | AS4835 | Hosting | 21ViaNet(China),Inc. | |
| 124.251.228.0/22 since Sep 18, 2026 | AS9802 | 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 Sep 18, 2026 | AS9802 | 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 Sep 18, 2026 | AS9802 | 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 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] |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 59,392 | 91% | 38 | |
| Residential | 6,144 | 9.4% | 2 |
Network & registry
Registry
Holder
- Organization
- 21ViaNet(China),Inc.
- Range
- 124.250.0.0/15
- Registration type
- ALLOCATED PORTABLE
Origin network
AS9308
CN
- Name
- Abitcool(China) Inc.
- Type
- Hosting
- Registered
- Apr 17, 1998
- Domain
- 21viamail.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2013
- Current origin since
- May 2020 · 6.5 yr
- Origin networks
- 3
- Last change of origin
- May 2020
Recorded history
History
- Handoffs
- 8
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 | RPKI valid |
| 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 | 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 |
|---|---|---|---|---|
| AS9308 | RADB | CT BeiJing IDC | MAINT-AS23724 | Apr 22, 2026 |
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