AS4665 YONSEI-AS-KR Yonsei University
🇰🇷Org handle: A9149F3E
Yonsei University
APNICallocated
Announced Prefixes (BGP)
33total
33 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)75,008
Announced (BGP)148,992
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
5
Country
🇰🇷 KRRIR
APNICStatus
allocated
Allocated
2004-12-17
Announced Prefixes
(BGP)33|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 | |
| No ROA | Other IRR | 2026-10-10 |
1-10 of 33
1 / 4
Allocated Prefixes
(RIR)22Prefix | Country | RIR | Status |
|---|---|---|---|
| 1.233.206.0/23 | 🇰🇷 KR | APNIC | allocated |
| 1.233.208.0/20 | 🇰🇷 KR | APNIC | allocated |
| 1.233.226.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.238.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.239.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.240.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.241.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.242.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.243.0/24 | 🇰🇷 KR | APNIC | assigned |
| 1.233.244.0/24 | 🇰🇷 KR | APNIC | assigned |
1-10 of 22
1 / 3
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS4665 should publish an ASPA object
- IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/4665Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/4665" | jq