AS131273 CORE WINNER CO.,LIMITED

Taiwan CWCTB-AS-AP APNIC 5 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

1,280

IPv6 /48 networks

RPKI

5 valid0 no ROA

Peers and downstreams

Holder

AS name: CWCTB-AS-AP
Description: CORE WINNER CO.,LIMITED
Organisation: CORE WINNER CO.,LIMITED
Abuse contact: Not published
Assigned: 2016-07-04
Registered: 2023-11-06
Record last changed: 2023-11-06 02:13 UTC

103.117.106.0/24 103.161.79.0/24 103.68.138.0/24 150.116.80.0/24 156.242.9.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 70/100

pass	Prefixes covered by valid ROAs 5 of 5 announced prefixes are RPKI valid.	25/25
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 op@corewinner.com 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
pass	Registry record maintained Last changed 2023-11-06.	5/5

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/131273"><img src="https://ip-fd.net/badge/asn/131273/health.svg" alt="AS131273 network health on IP-FD.net"></a>

Markdown

[![AS131273 network health](https://ip-fd.net/badge/asn/131273/health.svg)](https://ip-fd.net/asn/131273)

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

Routing changes

Last 30 days

2026-10-04 14:56 UTC	Neighbour gone	AS174	upstream
2026-10-04 14:56 UTC	New neighbour	AS10133	peer
2026-10-04 14:56 UTC	Prefix gone	103.166.81.0/24

WHOIS

aut-num:        AS131273
as-name:        CWCTB-AS-AP
handle:         AS131273
remarks:        CORE WINNER CO.,LIMITED
technical,administrative:CWCT1-AP (CORE WINNER COLIMITED TAIWAN BRANCH administrator) <op@corewinner.com>
registrant:     ORG-CWCT1-AP (CORE WINNER CO.,LIMITED) <op@corewinner.com>
abuse:          IRT-CWCTB-TW (IRT-CWCTB-TW) <op@corewinner.com>
registration:   2023-11-06T02:13:41Z
last changed:   2023-11-06T02:13:41Z
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/131273

const res = await fetch('https://ip-fd.net/api/v1/asn/131273', {
  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/131273', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/131273');
curl_setopt($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/131273", 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.

AS10133	Chief Telecom Inc. TPIX-AS-TW
AS24482	SG.GS SGGS-AS-AP