AS23581 Hynix Semiconductor Inc.

South Korea HYNIX-AS-KR APNIC 16 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

4,096

IPv6 /48 networks

RPKI

0 valid16 no ROA

Peers and downstreams

Holder

AS name: HYNIX-AS-KR
Description: Hynix Semiconductor Inc.
Organisation: Hynix Semiconductor Inc.
Abuse contact: Not published
Assigned: 2002-12-23

166.125.0.0/24 166.125.230.0/24 166.125.239.0/24 166.125.240.0/24 166.125.241.0/24 166.125.242.0/24 166.125.243.0/24 166.125.244.0/24 166.125.245.0/24 166.125.246.0/24 166.125.248.0/24 166.125.250.0/24 166.125.251.0/24 166.125.252.0/24 166.125.253.0/24 166.125.254.0/24

Routing changes

Last 30 days

2026-10-03 22:59 UTC

New prefix

166.125.230.0/24

WHOIS

aut-num:        AS23581
as-name:        HYNIX-AS-KR-KR
handle:         AS23581
remarks:        Hynix Semiconductor Inc.
administrative,technical:SC536-KR (AS Manager) <eunha2.lee@sk.com>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
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/23581

const res = await fetch('https://ip-fd.net/api/v1/asn/23581', {
  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/23581', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/23581');
curl_setopt($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/23581", 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.

AS4766	Korea Telecom KIXS-AS-KR-KR
AS9318	SK Broadband Co Ltd SKB-AS-KR