AS131883 INSTITUTES OF GREENBIO SCIENCE AND TECHNOLOGY

South Korea GBST-AS-KR APNIC 4 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

512

IPv6 /48 networks

RPKI

0 valid4 no ROA

Peers and downstreams

Holder

AS name: GBST-AS-KR
Description: INSTITUTES OF GREENBIO SCIENCE AND TECHNOLOGY
Organisation: INSTITUTES OF GREENBIO SCIENCE AND TECHNOLOGY
Abuse contact: Not published
Assigned: 2011-07-31

115.92.244.0/24 115.92.244.0/25 210.100.158.0/25 222.113.42.0/25

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade E · 37/100

fail	Prefixes covered by valid ROAs 0 of 4 announced prefixes are RPKI valid, 4 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.or.kr is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
fail	No prefixes smaller than /24 or /48 3 prefixes are smaller than most networks accept (115.92.244.0/25, 210.100.158.0/25, 222.113.42.0/25).	0/10
n/a	Registry record maintained We have no change date for this record.

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/131883"><img src="https://ip-fd.net/badge/asn/131883/health.svg" alt="AS131883 network health on IP-FD.net"></a>

Markdown

[![AS131883 network health](https://ip-fd.net/badge/asn/131883/health.svg)](https://ip-fd.net/asn/131883)

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

Routing changes

Last 30 days

2026-10-05 06:41 UTC	New neighbour	AS3786	upstream
2026-10-05 06:41 UTC	New prefix	115.92.244.0/24

WHOIS

aut-num:        AS131883
as-name:        GBST-AS-KR-KR
handle:         AS131883
remarks:        INSTITUTES OF GREENBIO SCIENCE AND TECHNOLOGY
administrative,technical:AM7842-KR (AS Manager) <itcsy@snu.ac.kr>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
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/131883

const res = await fetch('https://ip-fd.net/api/v1/asn/131883', {
  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/131883', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/131883');
curl_setopt($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/131883", 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.

AS3786	LG DACOM Corporation LGDACOM-KR
AS4766	Korea Telecom KIXS-AS-KR-KR