AS1781
Korea Advanced Institute of Science and Technology
APNIC KR active Announced
More ASNs in South Korea → Organization
Korea Advanced Institute of Science and Technology
KAIST-DAEJEON-AS-KR-KR
Registered
Aug 01, 2002
24 years ago
IPv4 Prefixes
8
90,112 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream
Registration
AS Number AS1781 AS Name KAIST-DAEJEON-AS-KR-KR Country South Korea (KR) Registry APNIC Allocated Aug 01, 2002 Status
active
WHOIS Server whois.apnic.net AS Description KAIST-DAEJEON-AS-KR-KR - Korea Advanced Institute of Science and Technology, KR Remarks Korea Advanced Institute of Science and Technology Abuse Email [email protected] IPv4 Prefixes
8 prefixes · 90,112 addresses · 4 top-level Routing data as of 2026-10-05 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 137.68.0.0/18 | 137.68.0.0 – 137.68.63.255 | 16,384 |
| 143.248.0.0/16 | 143.248.0.0 – 143.248.255.255 | 65,536 |
| 143.248.0.0/18 | 143.248.0.0 – 143.248.63.255 | 16,384 |
| 143.248.64.0/18 | 143.248.64.0 – 143.248.127.255 | 16,384 |
| 143.248.128.0/18 | 143.248.128.0 – 143.248.191.255 | 16,384 |
| 143.248.192.0/18 | 143.248.192.0 – 143.248.255.255 | 16,384 |
| 192.249.16.0/20 | 192.249.16.0 – 192.249.31.255 | 4,096 |
| 210.107.128.0/20 | 210.107.128.0 – 210.107.143.255 | 4,096 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
3 unique neighbours · 3 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (3)
Raw RDAP Response
{
"rdapConformance": [
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"notices": [
{
"title": "Source",
"description": [
"Objects returned came from source",
"KRNIC"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format.",
"This information has been partially mirrored by APNIC from KRNIC. To obtain more specific information, please use the KRNIC whois server at whois.kisa.or.kr."
],
"links": [
{
"value": "https://krnic.rdap.apnic.net/autnum/1781",
"rel": "terms-of-service",
"href": "http://www.apnic.net/db/dbcopyright.html",
"type": "text/html"
}
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"value": "https://krnic.rdap.apnic.net/autnum/1781",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "KR",
"name": "KAIST-DAEJEON-AS-KR-KR",
"status": [
"active"
],
"links": [
{
"value": "https://krnic.rdap.apnic.net/autnum/1781",
"rel": "self",
"href": "https://krnic.rdap.apnic.net/autnum/1781",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Korea Advanced Institute of Science and Technology"
],
"title": "description"
}
],
"entities": [
{
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://krnic.rdap.apnic.net/autnum/1781",
"rel": "self",
"href": "https://krnic.rdap.apnic.net/entity/TY3-KR",
"type": "application/rdap+json"
}
],
"handle": "TY3-KR",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-10-19T07:36:36Z"
}
],
"links": [
{
"value": "https://krnic.rdap.apnic.net/autnum/1781",
"rel": "self",
"href": "https://krnic.rdap.apnic.net/entity/IRT-KRNIC-KR",
"type": "application/rdap+json"
}
],
"handle": "IRT-KRNIC-KR",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-KRNIC-KR"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Seocho-ro 398, Seocho-gu, Seoul, Korea"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "AS1781",
"startAutnum": 1781,
"endAutnum": 1781,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.