Autonomous System
AS4158 City University of Hong Kong
EducationActiveHong Kong SAR ChinaAPNIC
AS4158 (CITYUNI-AS-AP) is an education network operated by City University of Hong Kong in Hong Kong SAR China, registered with APNIC. It has 8 IPv4 prefixes with 82,944 addresses and 1 IPv6 prefix, which makes it the 2,612th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses82,944in 8 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#2,612of 82,200 active ASNs
Details
OrganizationCity University of Hong Kong
AS nameCITYUNI-AS-AP
Websitecityu.edu.hk
Country Hong Kong SAR China (HK)
Network typeEducation
RegistryAPNIC
Abuse contactccnet@cityu.edu.hk
Registered—
Last updated2022-10-10
IPv4 prefixes
8 prefixes · 82,944 addresses| Network | Addresses | First – last address |
|---|---|---|
| 144.214.0.0/16 | 65,536 | 144.214.0.0 – 144.214.255.255 |
| 175.159.64.0/19 | 8,192 | 175.159.64.0 – 175.159.95.255 |
| 175.159.200.0/21 | 2,048 | 175.159.200.0 – 175.159.207.255 |
| 202.125.216.0/21 | 2,048 | 202.125.216.0 – 202.125.223.255 |
| 203.188.80.0/21 | 2,048 | 203.188.80.0 – 203.188.87.255 |
| 175.159.208.0/22 | 1,024 | 175.159.208.0 – 175.159.211.255 |
| 202.125.252.0/22 | 1,024 | 202.125.252.0 – 202.125.255.255 |
| 203.188.88.0/22 | 1,024 | 203.188.88.0 – 203.188.91.255 |
144.214.0.0/16 175.159.64.0/19 175.159.200.0/21 202.125.216.0/21 203.188.80.0/21 175.159.208.0/22 202.125.252.0/22 203.188.88.0/22
IPv6 prefixes
1 prefix- 2001:ce0:5::/48
2001:ce0:5::/48
Query AS4158 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS4158&key=YOUR_API_KEY"Any address in its prefixes resolves to AS4158, with or without a key:
curl "https://api.ipapi.is/?q=144.214.0.1"Largest networks in Hong Kong SAR China
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