AS133748 CORETEL NETWORKS (INTERNATIONAL) PTE LTD

Singapore CORETELNET-AS-AP APNIC 23 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

5,888

IPv6 /48 networks

65,536

RPKI

24 valid0 no ROA

Peers and downstreams

Holder

AS name: CORETELNET-AS-AP
Description: CORETEL NETWORKS (INTERNATIONAL) PTE LTD
Organisation: Coretel Networks (International) Pte Ltd
Abuse contact: Not published
Assigned: 2014-09-30
Registered: 2014-10-01
Record last changed: 2020-07-07 04:55 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 95/100

pass	Prefixes covered by valid ROAs 24 of 24 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 5 upstreams seen in BGP.	10/10
pass	Working abuse contact ABUSE@CORETELNET.COM is published.	15/15
pass	Publishes a geofeed A geofeed (RFC 8805) tells where the address space is used.	10/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
fail	Registry record maintained Last changed 2020-07-07.	0/5

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/133748"><img src="https://ip-fd.net/badge/asn/133748/health.svg" alt="AS133748 network health on IP-FD.net"></a>

Markdown

[![AS133748 network health](https://ip-fd.net/badge/asn/133748/health.svg)](https://ip-fd.net/asn/133748)

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

Routing changes

Last 30 days

2026-10-04 11:05 UTC	Relationship changed	AS8888	upstream to peer
2026-10-04 11:05 UTC	New neighbour	AS395174	upstream
2026-10-04 11:05 UTC	New prefix	206.131.192.0/24
2026-10-04 11:05 UTC	New prefix	206.131.201.0/24
2026-10-04 11:05 UTC	New prefix	206.131.200.0/24

WHOIS

aut-num:        AS133748
as-name:        CORETELNET-AS-AP
handle:         AS133748
remarks:        CORETEL NETWORKS (INTERNATIONAL) PTE LTD
registrant:     ORG-CNPL1-AP (Coretel Networks (International) Pte Ltd) <noc@coretelnet.com>
technical:      CI101-AP (CORETELNET IPNOC) <NOC@CORETELNET.COM>
abuse:          IRT-CORETELNET-SG (IRT-CORETELNET-SG) <ABUSE@CORETELNET.COM>
registration:   2014-10-01T10:38:39Z
last changed:   2020-07-07T04:55:57Z
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/133748

const res = await fetch('https://ip-fd.net/api/v1/asn/133748', {
  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/133748', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/133748');
curl_setopt($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/133748", 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.

AS3491	PCCW Global (HK) Ltd. PCCWG-APAC-HK
AS9002	RETN Limited RETN-AS
AS21859	Zenlayer Inc ZEN-ECN
AS24482	SG.GS SGGS-AS-AP
AS395174	Iron Mountain Data Center IMDC-APAC