AS18091 Teikyo University

Japan TUC-NET APNIC 3 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

1,024

IPv6 /48 networks

RPKI

0 valid3 no ROA

Peers and downstreams

Holder

AS name: TUC-NET
Description: Teikyo University Toyosatodai 1-1, Utsunomiya, Tochigi 320,Japan
Organisation: Teikyo University
Abuse contact: Not published
Assigned: 2001-12-26
Record last changed: 2005-07-04 22:56 UTC

202.253.108.0/22 202.253.108.0/23 202.253.110.0/23

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade D · 45/100

fail	Prefixes covered by valid ROAs 0 of 3 announced prefixes are RPKI valid, 3 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact hostmaster@nic.ad.jp 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
fail	Registry record maintained Last changed 2005-07-04.	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/18091"><img src="https://ip-fd.net/badge/asn/18091/health.svg" alt="AS18091 network health on IP-FD.net"></a>

Markdown

[![AS18091 network health](https://ip-fd.net/badge/asn/18091/health.svg)](https://ip-fd.net/asn/18091)

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:        AS18091
as-name:        TEIKYO-U
handle:         AS18091
remarks:        Teikyo University
technical,administrative:HT069JP
technical,administrative:JNIC1-AP (Japan Network Information Center) <hostmaster@nic.ad.jp>
abuse:          IRT-JPNIC-JP (IRT-JPNIC-JP) <hostmaster@nic.ad.jp>
last changed:   2005-07-04T22:56:15Z
source:         APNIC (RDAP)

Routing data

Updated 2 h ago

Registry record

Fetched 2 h 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/18091

const res = await fetch('https://ip-fd.net/api/v1/asn/18091', {
  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/18091', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/18091');
curl_setopt($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/18091", 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
AS2907	Research Organization of Information and Systems, National Institute of Informatics SINET-AS