AS23816 LY Corporation

Japan YAHOO APNIC 7 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

66,560

IPv6 /48 networks

65,536

RPKI

8 valid0 no ROA

Peers and downstreams

Holder

AS name: YAHOO
Description: LY Corporation
Organisation: LY Corporation
Abuse contact: Not published
Assigned: 2003-06-15
Record last changed: 2025-06-18 16:44 UTC

118.151.224.0/19 182.22.0.0/17 202.239.0.0/20 202.93.64.0/19 203.141.32.0/20 203.216.224.0/19 211.14.12.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 75/100

pass	Prefixes covered by valid ROAs 8 of 8 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 4 upstreams seen in BGP.	10/10
fail	Working abuse contact No abuse contact is published in the registry.	0/15
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 2025-06-18.	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/23816"><img src="https://ip-fd.net/badge/asn/23816/health.svg" alt="AS23816 network health on IP-FD.net"></a>

Markdown

[![AS23816 network health](https://ip-fd.net/badge/asn/23816/health.svg)](https://ip-fd.net/asn/23816)

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

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:        AS23816
as-name:        YAHOO
handle:         AS23816
remarks:        LY Corporation
technical,administrative:JNIC1-AP (Japan Network Information Center) <hostmaster@nic.ad.jp>
technical,administrative:JP00032461
last changed:   2025-06-18T16:44:11Z
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/23816

const res = await fetch('https://ip-fd.net/api/v1/asn/23816', {
  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/23816', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/23816');
curl_setopt($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/23816", 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.

AS2497	Internet Initiative Japan Inc. IIJ
AS2516	KDDI CORPORATION KDDI
AS6939	Hurricane Electric LLC HURRICANE
AS17676	SoftBank Corp. GIGAINFRA

AS18140	LY Corporation YAHOO-18140
AS24296	LY Corporation YAHOO-2
AS55898	LY Corporation YAHOO-CORP

AS1828	Unitas Global UNITAS
AS2500	WIDE Project WIDE-BB
AS4713	NTT DOCOMO BUSINESS,Inc. OCN
AS4777	Asia Pacific Network Information Centre APNIC-COLO
AS8220	COLT Technology Services Group Limited COLT
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC Etisalat-AS
AS9002	RETN Limited RETN-AS
AS15412	Flag Telecom UK Limited FLAG-AS
AS17639	Converge ICT Solutions Inc. CONVERGE-AS
AS18106	Viewqwest Pte Ltd VIEWQWEST-SG-AP
AS18140	LY Corporation YAHOO-18140
AS24296	LY Corporation YAHOO-2
AS24482	SG.GS SGGS-AS-AP
AS25152	Reseaux IP Europeens Network Coordination Centre (RIPE NCC) K-ROOT-SERVER
AS35280	F5 Networks SARL F5
AS36236	NetActuate, Inc NETACTUATE
AS45489	Sri Lanka Telecom PLC, GLobal Peering SLT-GLOBAL
AS49544	i3D.net B.V i3Dnet
AS55898	LY Corporation YAHOO-CORP
AS59105	Home NOC Operators Group HOMENOC