AS10197 Chonnam National University

South Korea CNU-AS-KR APNIC 11 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

65,536

IPv6 /48 networks

4,096

RPKI

0 valid12 no ROA

Peers and downstreams

Holder

AS name: CNU-AS-KR
Description: Chonnam National University
Organisation: Chonnam National University
Abuse contact: Not published
Assigned: 2000-08-31

168.131.0.0/16 168.131.126.0/24 168.131.127.0/24 168.131.129.0/24 168.131.131.0/24 168.131.187.0/24 168.131.193.0/24 168.131.194.0/24 168.131.195.0/24 168.131.40.0/24 168.131.78.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 63/100

fail	Prefixes covered by valid ROAs 0 of 12 announced prefixes are RPKI valid, 12 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 3 upstreams seen in BGP.	10/10
pass	Working abuse contact hostmaster@nic.or.kr 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
n/a	Registry record maintained We have no change date for this record.

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/10197"><img src="https://ip-fd.net/badge/asn/10197/health.svg" alt="AS10197 network health on IP-FD.net"></a>

Markdown

[![AS10197 network health](https://ip-fd.net/badge/asn/10197/health.svg)](https://ip-fd.net/asn/10197)

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

Routing changes

Last 30 days

2026-10-04 04:21 UTC

Relationship changed

AS9270

upstream to peer

WHOIS

aut-num:        AS10197
as-name:        CNU-AS-KR-KR
handle:         AS10197
remarks:        Chonnam National University
technical:      CC335-KR (AS Manager) <help@jnu.ac.kr>
administrative: DK335-KR (AS Manager) <help@jnu.ac.kr>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
source:         APNIC (RDAP)

Routing data

Updated 1 days ago

Registry record

Fetched 1 days ago 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/10197

const res = await fetch('https://ip-fd.net/api/v1/asn/10197', {
  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/10197', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/10197');
curl_setopt($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/10197", 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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