Data as of Nov 11, 2026
23.91.99.0/24
No anonymizer space · no proxy exits in 30 daysUcloud Information Technology (HK) Limited · space held by Zenlayer 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 |
|---|---|---|---|---|---|---|
| 23.91.96.0/20 | 4,096 | ZL-LAX3-001 | Zenlayer Inc (ZENLA-7) · US | Direct Allocation | Sep 5, 2013 | abuse@ |
| └ 23.91.99.0/24 | 256 | ZL-HKG-UCLOUD-0020 | UCLOUD (UCLOU-1) · HK | Reassigned | Feb 28, 2019 | unoc@ |
Network & registry
IPv4 market
Holder
- Organization
- Zenlayer Inc
- Handle
- ZENLA-7
- Range
- 23.
91. 96. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Sep 5, 2013
Origin network
AS135377
HK
- Name
- Ucloud Information Technology (HK) Limited
- Type
- Hosting
- Registered
- Apr 27, 2016
- Domain
- ucloud.cn
- Website
- www.ucloud.cn
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Feb 2015
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 3
- Last change of origin
- Aug 2025
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 23.91.96.0/22 | AS62610 | /24 | ARIN | Another network |
| 23.91.96.0/22 | AS135377 | /24 | ARIN | RPKI valid |
| 23.91.96.0/20 | AS21859 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS135377 | RADB | ZL-IDC-UCLOUD-HKG | MAINT-AS21859 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 23.
91. 99. 0/ 24 - Netname
- ZL-HKG-UCLOUD-0020
- Registrant
- UCLOUD
- Organization
- UCLOUD (UCLOU-1)
- Org address
- FLAT/RM 603 6/ FLAWS COMMERCIAL PLAZA 788 CHEUNG SHA WAN ROAD KL, Hong Kong
- Org country
- HK
- Type
- Reassigned
- Handle
- NET-23-91-99-0-1
- Parent
- NET-23-91-96-0-1
- Created
- Feb 28, 2019
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 5, 2013
- Status
- assigned
Report abuse
Abuse contact
- unoc@
ucloud. cn - Name
- IP ABUSE Ucloud
- Phone
- +86 17721465033
- Handle
- IAU2-ARIN