Data as of Nov 10, 2026
175.159.200.0/21
No anonymizer space · no proxy exits in 30 daysCity University of Hong Kong · space held by Joint Universities Computer Centre Limited
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 |
|---|---|---|---|---|---|---|
| 175.159.0.0/16 | 65,536 | JUCC-BLK5 | Joint Universities Computer Centre Limited (ORG-JUCC1-AP) · HK | ALLOCATED PORTABLE | — | hartech@ |
| └ 175.159.200.0/21 | 2,048 | CITYU-HK | City University of Hong Kong | ASSIGNED NON-PORTABLE | — | hartech@ via JUCC-BLK5 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Joint Universities Computer Centre Limited
- Handle
- ORG-JUCC1-AP
- Range
- 175.
159. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
Origin network
AS4158
HK
- Name
- City University of Hong Kong
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- cityu.edu.hk
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2010
- Current origin since
- Apr 2010 · 17 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3662 not the origin | RADB | HKBN(customer route) | MAINT-AS9269 | Nov 13, 2023 |
| AS4158 | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 | Nov 13, 2023 |
| AS4158 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Dec 16, 2010 |
| AS9269 not the origin | RADB | HKBN(customer route) | MAINT-AS9269 | Nov 13, 2023 |
| AS9269 not the origin | NTTCOM | HKBN as object (AS9269) | MAINT-HKBN | Oct 19, 2017 |
| AS10103 not the origin | RADB | HKBN(customer route) | MAINT-AS9269 | Nov 13, 2023 |
| AS45474 not the origin | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 175.159.200.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.200.0/24 | AS9269 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Feb 27, 2017 |
| 175.159.201.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.202.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.203.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.204.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.205.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.206.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
| 175.159.207.0/24 | AS45474 | RADB | Nexusguard (Customer Route) | MAINT-AS45474 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 175.
159. 200. 0/ 21 - Netname
- CITYU-HK
- Registrant
- City University of Hong Kong
- Registrant country
- HK
- Organization
- City University of Hong Kong
- Org country
- HK
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Apr 19, 2010
- Maintainer
- MAINT-JUCC-AP
- RIR
- APNIC
- Country
- HK
- Delegated
- Jan 19, 2010
- Status
- assigned
Report abuse
Abuse contact
- hartech@
jucc. edu. hk - Name
- ABUSE JUCCHK
- Handle
- AJ481-AP