AS38254 Internet Technology Laboratory

Taiwan ITLAB-AS-AP APNIC 5 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

1,280

IPv6 /48 networks

4,098

RPKI

7 valid1 no ROA

Peers and downstreams

Holder

AS name: ITLAB-AS-AP
Description: Internet Technology Laboratory Pang-Wei Tsai
Organisation: Pang-Wei Tsai
Abuse contact: Not published
Assigned: 2021-06-07
Registered: 2021-06-08
Record last changed: 2025-03-14 02:06 UTC

103.122.119.0/24 103.129.145.0/24 103.167.250.0/23 103.167.250.0/24 44.31.69.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 87/100

partly	Prefixes covered by valid ROAs 7 of 8 announced prefixes are RPKI valid, 1 have no ROA.	22/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 3 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact noc@itlab.cc 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 2025-03-14.	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/38254"><img src="https://ip-fd.net/badge/asn/38254/health.svg" alt="AS38254 network health on IP-FD.net"></a>

Markdown

[![AS38254 network health](https://ip-fd.net/badge/asn/38254/health.svg)](https://ip-fd.net/asn/38254)

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

Routing changes

Last 30 days

2026-10-05 16:39 UTC	Neighbour gone	AS59105	upstream
2026-10-05 16:39 UTC	Neighbour gone	AS7660	peer
2026-10-05 16:39 UTC	New neighbour	AS154392	downstream
2026-10-05 16:39 UTC	Relationship changed	AS7539	upstream to peer
2026-10-05 16:39 UTC	Relationship changed	AS18041	upstream to peer
2026-10-05 16:39 UTC	New neighbour	AS137409	peer

WHOIS

aut-num:        AS38254
as-name:        ITLAB-AS-AP
handle:         AS38254
remarks:        Internet Technology Laboratory
remarks:        Pang-Wei Tsai
abuse:          IRT-PANGWEITSAI-TW (IRT-PANGWEITSAI-TW) <noc@itlab.cc>
registrant:     ORG-PT10-AP (Pang-Wei Tsai) <noc@itlab.cc>
technical,administrative:PTA7-AP (Pang-Wei Tsai administrator) <noc@itlab.cc>
registration:   2021-06-08T04:42:00Z
last changed:   2025-03-14T02:06:25Z
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/38254

const res = await fetch('https://ip-fd.net/api/v1/asn/38254', {
  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/38254', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/38254');
curl_setopt($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/38254", 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.

AS6939	Hurricane Electric LLC HURRICANE
AS18423	RAID Networks Co., Ltd. RAID-AS-TW
AS134823	Sky Digital Co., Ltd. SDCL-AS-AP
AS138997	Eons Data Communications Limited EDCL-AS-AP

AS9267	Pang-Wei Tsai SDXPROJ-AS-AP
AS154392	Singapore Institute of Technology SIT-AS-AP
AS214821	Wen-Ju, Chiang N0B-NET

AS7539	National Center for High-performance Computing TWAREN-TW
AS13335	Cloudflare, Inc. CLOUDFLARENET
AS17408	AboveNet Communications Taiwan ABOVE-AS-AP
AS17717	Ministry of Education Computer Center Taipei, Taiwan MOECC-IPV6
AS18041	Taiwan Digital Streaming Co. TWDS-AS-TW
AS24482	SG.GS SGGS-AS-AP
AS38855	Taiwan Digital Streaming Co. STUIX-AS-TW
AS131149	Yuan-Jhen Info., Co., Ltd YUANJHEN-AS-TW
AS137409	GSL Networks Pty LTD GSLNETWORKS-AS-AP