AS18026 — CHEJU-AS-KR JEJU NATIONAL UNIVERSITY

AS18026 announces 16 IPv4 prefixes covering 20,224 addresses and 0 IPv6 prefixes.

About this network

CHEJU-AS-KR is the autonomous system for Jeju National University, a public research university located in South Korea.

What it's used for

• The address space is registered under netnames CHEJU-NET-KR and KREN-KR, with registrants listed as IRT-KRNIC-KR, indicating allocation through the Korea Internet & Security Agency.
• The AS announces 20,224 IPv4 addresses across 16 prefixes, with only 4 observed routing neighbours; this high address-to-neighbour ratio is characteristic of an access or eyeball network serving a specific institutional campus rather than a transit provider.

Notable

• Registrants for all listed prefixes are IRT-KRNIC-KR, which aligns with the AS holder identity of Jeju National University.
• The inventory consists of 16 IPv4 prefixes with no IPv6 prefixes in the current inventory, ranging from a /19 block to multiple /24 blocks.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 113.198.160.0/21
• 113.198.168.0/22
• 114.71.62.0/23
• 117.17.95.0/24
• 117.17.96.0/21
• 117.17.104.0/23
• 117.17.116.0/24
• 192.203.138.0/24
• 203.237.202.0/23
• 203.253.192.0/19
• 210.93.72.0/22
• 220.68.2.0/23
• 220.69.174.0/23
• 220.149.40.0/22
• 223.194.230.0/23
• 223.194.232.0/22

Upstream networks

• AS4766 Korea Telecom
• AS1237 KISTI
• AS9318 SK Broadband Co Ltd

Adjacent networks

• AS4766 Korea Telecom
• AS1237 KISTI
• AS9318 SK Broadband Co Ltd