AS4616 The Hong Kong Polytechnic University

Hong Kong SAR China HKPOLYU-HK APNIC 8 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

82,944

IPv6 /48 networks

RPKI

0 valid9 no ROA

Peers and downstreams

Holder

AS name: HKPOLYU-HK
Description: The Hong Kong Polytechnic University
Organisation: The Hong Kong Polytechnic University
Abuse contact: Not published
Assigned: 1995-07-06
Registered: 2008-09-04
Record last changed: 2022-05-25 06:20 UTC

158.132.0.0/16 175.159.0.0/19 175.159.192.0/21 175.159.192.0/24 175.159.228.0/22 202.125.192.0/20 202.125.197.0/24 202.125.208.0/21

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 60/100

fail	Prefixes covered by valid ROAs 0 of 9 announced prefixes are RPKI valid, 9 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@polyu.edu.hk is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
fail	Registry record maintained Last changed 2022-05-25.	0/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/4616"><img src="https://ip-fd.net/badge/asn/4616/health.svg" alt="AS4616 network health on IP-FD.net"></a>

Markdown

[![AS4616 network health](https://ip-fd.net/badge/asn/4616/health.svg)](https://ip-fd.net/asn/4616)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 11:31 UTC

Relationship changed

AS137207

upstream to peer

WHOIS

aut-num:        AS4616
as-name:        HKPOLYU-HK
handle:         AS4616
remarks:        The Hong Kong Polytechnic University
technical,administrative:THKP1-AP (The Hong Kong Polytechnic University administrator) <abuse@polyu.edu.hk>
registrant:     ORG-THKP2-AP (The Hong Kong Polytechnic University) <noc.admin@polyu.edu.hk>
abuse:          IRT-THKPU-HK (IRT-THKPU-HK) <abuse@polyu.edu.hk>
registration:   2008-09-04T06:40:42Z
last changed:   2022-05-25T06:20:13Z
source:         APNIC (RDAP)

Routing data

Updated just now

Registry record

Fetched just now from APNIC RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/4616

const res = await fetch('https://ip-fd.net/api/v1/asn/4616', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/4616', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/4616');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/4616", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

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