AS10156 — SNUE-AS-KR Seoul National University of Education

Network type: education

AS10156 announces 3 IPv4 prefixes covering 1,280 addresses and 0 IPv6 prefixes.

About this network

SNUE-AS-KR is the campus network of Seoul National University of Education (서울교육대학교), the national teachers' college in Seocho-gu, Seoul that trains primary-school teachers.

What it's used for

• Campus connectivity for a single-site university: student and staff access, the library, and the college's public web and mail services.

Notable

This is a genuine education network, and the evidence says so directly rather than by inference from the word University in the name. The pack's sampled reverse DNS resolves 203.234.36.5 to pegasus.snue.ac.kr — a host named under the college's own ac.kr (academic Korea) domain, which is the registry-gated namespace reserved for accredited Korean institutions. First-party rDNS inside ac.kr means the college both holds the space and uses it itself, so there is no "who really operates this" question.

The routing shape agrees: three announced IPv4 prefixes totalling 1,280 addresses, no IPv6, and one observed BGP neighbour. A single upstream is what a campus with one physical site looks like. The three prefixes sit in unrelated blocks (203.234.36.0/23, 210.93.22.0/23, 211.104.111.0/24), the normal result of a small institution picking up allocations across two decades rather than any sign of address trading.

Interesting

• Roughly a thousand routable addresses is tiny for a university, which tells you most of the campus lives behind NAT; the public block is essentially servers, DMZ and the eduroam-facing edge.

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

Announced prefixes

• 203.234.36.0/23
• 210.93.22.0/23
• 211.104.111.0/24

Upstream networks

• AS4766 Korea Telecom

Adjacent networks

• AS4766 Korea Telecom