AS17645 ASN - NTT SINGAPORE PTE LTD

Singapore NTT-SG-AP APNIC 12 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

82,944

IPv6 /48 networks

65,536

RPKI

13 valid0 no ROA

Peers and downstreams

Holder

AS name: NTT-SG-AP
Description: ASN - NTT SINGAPORE PTE LTD A NTT Communications Group Company
Organisation: NTT Singapore Pte Ltd
Abuse contact: Not published
Assigned: 2001-02-21
Registered: 2008-09-04
Record last changed: 2025-01-30 08:12 UTC

116.51.0.0/16 116.51.4.0/24 116.51.8.0/23 175.28.8.0/22 202.136.160.0/19 202.136.166.0/24 202.136.168.0/23 202.136.170.0/24 202.136.188.0/22 58.65.0.0/19 58.65.16.0/22 58.65.24.0/23

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 13 of 13 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 3 upstreams seen in BGP.	10/10
pass	Working abuse contact ap.eis-netops@global.ntt 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 2025-01-30.	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/17645"><img src="https://ip-fd.net/badge/asn/17645/health.svg" alt="AS17645 network health on IP-FD.net"></a>

Markdown

[![AS17645 network health](https://ip-fd.net/badge/asn/17645/health.svg)](https://ip-fd.net/asn/17645)

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

Routing changes

Last 30 days

2026-10-04 05:24 UTC	Relationship changed	AS9505	upstream to peer
2026-10-04 05:24 UTC	Relationship changed	AS9293	upstream to peer
2026-10-04 05:24 UTC	Relationship changed	AS2914	upstream to downstream

WHOIS

aut-num:        AS17645
as-name:        NTT-SG-AP
handle:         AS17645
remarks:        ASN - NTT SINGAPORE PTE LTD
remarks:        A NTT Communications Group Company
remarks:        For routing information,
remarks:        Please refer to RADB or
remarks:        NTT Communications Routing Registry (NTTCOM)
remarks:        *****************************************************
remarks:        Contacts per RFC2142
remarks:        *****************************************************
technical:      NDEI2-AP (NTT DATA EIS IP Engineering) <ap.eis-netops@global.ntt>
registrant:     ORG-NSPL9-AP (NTT Singapore Pte Ltd) <ap.eis-netops@global.ntt>
abuse:          IRT-NTT-SG (IRT-NTT-SG) <ap.eis-netops@global.ntt>
registration:   2008-09-04T06:40:30Z
last changed:   2025-01-30T08:12:14Z
source:         APNIC (RDAP)

Routing data

Updated 2 days ago

Registry record

Fetched 2 days ago 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/17645

const res = await fetch('https://ip-fd.net/api/v1/asn/17645', {
  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/17645', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/17645');
curl_setopt($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/17645", 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.

AS2914	NTT America, Inc. NTT-DATA-2914
AS3491	PCCW Global (HK) Ltd. PCCWG-APAC-HK
AS4637	Telstra Global ASN-TELSTRA-GLOBAL

AS2914	NTT America, Inc. NTT-DATA-2914
AS3741	Dimension Data
AS4657	StarHub Ltd STARHUB-INTERNET
AS10204	Arcnet NTT MSC ISP ARCNET-NTTMSC-MY
AS10236	AXA Technology Services Asia (HK) Limited ATS-ASIA-NETWORK-AS-AP
AS38566	NTTCTNET NTTCT-AS-TH-AP
AS45794	NTT Singapore - IP Network (RFC 2270) NTT-SG-AP-RFC2270
AS46078	Dimension Data AP Kaki Bukit Singapore DDAP-KBT-AS-AP
AS56227	Zurich Financial Services Australia Limited ZURICH-AU
AS131789	Asahi Kasei International IT Asia Pacific Co., LTD AKIIAPCL-AS-AP
AS132018	NATIXIS NATIXIS1-AS-AP2
AS139896	Flex-Sgd FLEX-SGD

AS3741	Dimension Data
AS4657	StarHub Ltd STARHUB-INTERNET
AS9293	NTT Com Asia Limited HKNet-vIPNet
AS9505	Taiwan Internet Gateway TWGATE-AP
AS38566	NTTCTNET NTTCT-AS-TH-AP