AS38638 Ip Core Corporation

Japan IP-CORE APNIC 26 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

6,656

IPv6 /48 networks

RPKI

7 valid19 no ROA

Peers and downstreams

Holder

AS name: IP-CORE
Description: Ip Core Corporation
Organisation: Ip Core Corporation
Abuse contact: Not published
Assigned: 2007-08-19
Record last changed: 2026-07-09 18:37 UTC

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS38638
as-name:        IP-CORE
handle:         AS38638
remarks:        OnairNet Inc.
technical,administrative:JNIC1-AP (Japan Network Information Center) <hostmaster@nic.ad.jp>
technical:      SK75137JP
administrative: AT37444JP
last changed:   2026-07-09T18:37:51Z
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/38638

const res = await fetch('https://ip-fd.net/api/v1/asn/38638', {
  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/38638', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/38638');
curl_setopt($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/38638", 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))

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