City University of Hong Kong
AS4158 is City University of Hong Kong (cityu.edu.hk). It announces 82,992 IPv4 addresses in 10 prefixes, and 1 IPv6 prefixes.
Hong Kong· APNIC· allocated 2002-08-01· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Hong Kong82,944 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CITYUNI-AS-AP
- name
- City University of Hong Kong
- org
- ORG-CUOH2-AP
- org name
- City University of Hong Kong
- org address
- Tat Chee Avenue,, Kowloon,
- org country
- HK
- country
- HK
- source
- apnic
- updated
- 2022-10-10
- descr
- City University of Hong Kong
- maintainer
- APNIC-HM
- maintainer email
- helpdesk@apnic.net
- abuse
- AC2622-AP
- abuse name
- ABUSE CITYUNINONHK
- abuse email
- ccnet@cityu.edu.hk
- abuse kind
- role
- admin
- CUOH2-AP
- admin name
- City University of Hong Kong - Network Administrator
- admin email
- ccnet@cityu.edu.hk
- admin phone
- +852 3442 7658
- admin kind
- role
- admin country
- HK
- tech
- CUOH2-AP
- tech name
- City University of Hong Kong - Network Administrator
- tech email
- ccnet@cityu.edu.hk
- tech phone
- +852 3442 7658
- tech kind
- role
- tech country
- HK
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- iproyal, proxyseller, anyip0.06%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 144.214.0.0/16 | Hong Kong | not found | 19 | 2026-10-02 |
| 175.159.64.0/19 | Hong Kong | not found | 19 | 2026-10-02 |
| 175.159.200.0/21 | Hong Kong | not found | 19 | 2026-10-02 |
| 175.159.208.0/22 | Hong Kong | not found | 19 | 2026-10-02 |
| 202.125.216.0/21 | Hong Kong | not found | 19 | 2026-10-02 |
| 202.125.252.0/22 | Hong Kong | not found | 19 | 2026-10-02 |
| 203.188.80.0/21 | Hong Kong | not found | 19 | 2026-10-02 |
| 203.188.88.0/22 | Hong Kong | not found | 19 | 2026-10-02 |
| 203.188.112.112/28 | Hong Kong | not found | 1 | 2026-10-02 |
| 203.188.112.128/27 | Hong Kong | not found | 2 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:ce0:5::/48 | Hong Kong | not found | 20 | 2026-10-02 |
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