AS23575 SK Broadband Co Ltd

South Korea SKB-GOV-KR APNIC 18 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

45,856

IPv6 /48 networks

RPKI

0 valid18 no ROA

Peers and downstreams

Holder

AS name: SKB-GOV-KR
Description: SK Broadband Co Ltd
Organisation: SK Broadband Co Ltd
Abuse contact: Not published
Assigned: 2002-12-23

125.61.0.0/17 125.61.12.240/28 175.122.90.0/24 175.122.90.64/28 175.122.91.0/24 175.122.92.0/22 175.122.96.0/19 175.123.232.0/22 175.123.236.0/24 175.123.237.0/24 175.123.238.0/24 203.243.15.0/24 203.243.16.0/24 203.247.82.0/27 203.247.93.0/24 203.247.94.0/24 203.247.95.0/24 203.247.96.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade E · 32/100

fail	Prefixes covered by valid ROAs 0 of 18 announced prefixes are RPKI valid, 18 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
partly	More than one upstream 1 upstream seen in BGP.	5/10
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
fail	No prefixes smaller than /24 or /48 3 prefixes are smaller than most networks accept (125.61.12.240/28, 175.122.90.64/28, 203.247.82.0/27).	0/10
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/23575"><img src="https://ip-fd.net/badge/asn/23575/health.svg" alt="AS23575 network health on IP-FD.net"></a>

Markdown

[![AS23575 network health](https://ip-fd.net/badge/asn/23575/health.svg)](https://ip-fd.net/asn/23575)

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

Routing changes

Last 30 days

2026-10-04 10:56 UTC	New prefix	125.61.12.240/28
2026-10-04 10:56 UTC	New prefix	203.247.82.0/27
2026-10-04 10:56 UTC	New prefix	175.122.90.64/28

WHOIS

aut-num:        AS23575
as-name:        SKB-GOV-KR-KR
handle:         AS23575
remarks:        SK Broadband Co Ltd
administrative: MY530-KR (AS Manager) <ip-adm@skbroadband.com>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
technical:      SK530-KR (AS Manager) <ip-adm@skbroadband.com>
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/23575

const res = await fetch('https://ip-fd.net/api/v1/asn/23575', {
  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/23575', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/23575');
curl_setopt($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/23575", 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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