AS4671 KTOA

South Korea KTOA-AS-KR APNIC 9 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

528

IPv6 /48 networks

RPKI

0 valid12 no ROA

Peers and downstreams

Holder

AS name: KTOA-AS-KR
Description: KTOA
Organisation: KTOA
Abuse contact: Not published
Assigned: 1995-05-29

103.55.35.0/27 103.55.35.32/27 121.134.220.0/27 121.134.220.32/27 125.131.87.0/25 210.91.80.192/26 211.38.137.64/26 220.75.238.128/25 222.106.198.192/28

Routing changes

Last 30 days

2026-10-04 04:46 UTC	Relationship changed	AS4766	upstream to peer
2026-10-04 04:46 UTC	New prefix	121.134.220.0/27
2026-10-04 04:46 UTC	New prefix	222.106.198.192/28
2026-10-04 04:46 UTC	New prefix	211.38.137.64/26
2026-10-04 04:46 UTC	New prefix	103.55.35.0/27
2026-10-04 04:46 UTC	New prefix	210.91.80.192/26
2026-10-04 04:46 UTC	New prefix	103.55.35.32/27
2026-10-04 04:46 UTC	New prefix	121.134.220.32/27

WHOIS

aut-num:        AS4671
as-name:        KTOA-AS-KR-KR
handle:         AS4671
remarks:        KTOA
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
administrative,technical:GY5031-KR (AS Manager) <allen@ktoa.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/4671

const res = await fetch('https://ip-fd.net/api/v1/asn/4671', {
  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/4671', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/4671');
curl_setopt($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/4671", 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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